Try this.
editqueForm = this.fb.group({
user: [this.question.user],
questioning: [this.question.questioning, Validators.required],
questionType: [this.question.questionType, Validators.required],
options: new FormArray([])
})
setValue() and patchValue()
if you want to set the value of one control, this will not work, therefor you have to set the value of both controls:
formgroup.setValue({name: ‘abc’, age: ‘25’});
It is necessary to mention all the controls inside the method. If this is not done, it will throw an error.
On the other hand patchvalue()
is a lot easier on that part, let’s say you only want to assign the name as a new value:
formgroup.patchValue({name:’abc’});
Yes there is a way to do it.
First declare a class.
//anyfile.ts
export class Custom
{
name: string,
empoloyeeID: number
}
Then in your component import the class
import {Custom} from '../path/to/anyfile.ts'
.....
export class FormComponent implements OnInit {
name: string;
empoloyeeID : number;
empList: Array<Custom> = [];
constructor() {
}
ngOnInit() {
}
onEmpCreate(){
//console.log(this.name,this.empoloyeeID);
let customObj = new Custom();
customObj.name = "something";
customObj.employeeId = 12;
this.empList.push(customObj);
this.name ="";
this.empoloyeeID = 0;
}
}
Another way would be to interfaces read the documentation once - https://www.typescriptlang.org/docs/handbook/interfaces.html
Also checkout this question, it is very interesting - When to use Interface and Model in TypeScript / Angular2
Another approach could be:
let myList = [{id:'aaa1', name: 'aaa'}, {id:'bbb2', name: 'bbb'}, {id:'ccc3', name: 'ccc'}];
let itemUpdated = {id: 'aaa1', name: 'Another approach'};
myList.find(item => item.id == itemUpdated.id).name = itemUpdated.name;
Only WinMerge made me find it (by comparison with a version that works). I had a case problem on formGroupName. Brackets around this word can lead to the same problem.
Pay attention
If you are creating a form using a variable for condition and trying to change it later it will not work, i.e. the form will not change.
For example
this.isDisabled = true;
this.cardForm = this.fb.group({
number: [{value: null, disabled: this.isDisabled},
});
and if you change the variable
this.isDisabled = false;
the form will not change. You should use
this.cardForm.get('number').disable();
BTW.
You should use patchValue method for changing value:
this.cardForm.patchValue({
number: '1703'
});
I never tried using formArray, I have always worked with FormGroup, and you can remove all controls using:
Object.keys(this.formGroup.controls).forEach(key => {
this.formGroup.removeControl(key);
});
being formGroup an instance of FormGroup.
if ngModule
is not working in input means try...remove double quotes around ngModule
like
<input #form="ngModel" [(ngModel)]......></input>
instead of above
<input #form=ngModel [(ngModel)]......></input> try this
The other answers normalize an image based on the entire image. But if your image has a predominant color (such as black), it will mask out the features that you're trying to enhance since it will not be as pronounced. To get around this limitation, we can normalize the image based on a subsection region of interest (ROI). Essentially we will normalize based on the section of the image that we want to enhance instead of equally treating each pixel with the same weight. Take for instance this earth image:
Input image ->
Normalization based on entire image
If we want to enhance the clouds by normalizing based on the entire image, the result will not be very sharp and will be over saturated due to the black background. The features to enhance are lost. So to obtain a better result we can crop a ROI, normalize based on the ROI, and then apply the normalization back onto the original image. Say we crop the ROI highlighted in green:
This gives us this ROI
The idea is to calculate the mean and standard deviation of the ROI and then clip the frame based on the lower and upper range. In addition, we could use an offset to dynamically adjust the clip intensity. From here we normalize the original image to this new range. Here's the result:
Before ->
After
Code
import cv2
import numpy as np
# Load image as grayscale and crop ROI
image = cv2.imread('1.png', 0)
x, y, w, h = 364, 633, 791, 273
ROI = image[y:y+h, x:x+w]
# Calculate mean and STD
mean, STD = cv2.meanStdDev(ROI)
# Clip frame to lower and upper STD
offset = 0.2
clipped = np.clip(image, mean - offset*STD, mean + offset*STD).astype(np.uint8)
# Normalize to range
result = cv2.normalize(clipped, clipped, 0, 255, norm_type=cv2.NORM_MINMAX)
cv2.imshow('image', image)
cv2.imshow('ROI', ROI)
cv2.imshow('result', result)
cv2.waitKey()
The difference between normalizing based on the entire image vs a specific section of the ROI can be visualized by applying a heatmap to the result. Notice the difference on how the clouds are defined.
Input image ->
heatmap
Normalized on entire image ->
heatmap
Normalized on ROI ->
heatmap
Heatmap code
import matplotlib.pyplot as plt
import numpy as np
import cv2
image = cv2.imread('result.png', 0)
colormap = plt.get_cmap('inferno')
heatmap = (colormap(image) * 2**16).astype(np.uint16)[:,:,:3]
heatmap = cv2.cvtColor(heatmap, cv2.COLOR_RGB2BGR)
cv2.imshow('image', image)
cv2.imshow('heatmap', heatmap)
cv2.waitKey()
Note: The ROI bounding box coordinates were obtained using how to get ROI Bounding Box Coordinates without Guess & Check and heatmap code was from how to convert a grayscale image to heatmap image with Python OpenCV
If you have a Collection of stdClass objects, you could try with this:
$data = $data->map(function ($item){
return get_object_vars($item);
});
I know, I am late but here is the correct way of doing it. using base64. This technique will convert the array to string.
import base64
import numpy as np
random_array = np.random.randn(32,32)
string_repr = base64.binascii.b2a_base64(random_array).decode("ascii")
array = np.frombuffer(base64.binascii.a2b_base64(string_repr.encode("ascii")))
For array to string
Convert binary data to a line of ASCII characters in base64 coding and decode to ASCII to get string repr.
For string to array
First, encode the string in ASCII format then Convert a block of base64 data back to binary and return the binary data.
In my case if you are using UITableView
do not forget to add UITableViewDelegate and UITableViewDataSource next to viewcontroller like this. class MenuController: UIViewController, UITableViewDelegate, UITableViewDataSource
When converting old projects (written in Swift 2.3) to Swift 3 it needs adding these keywords.
wtluo, great ! May I propose a slight modification of your code 2. ? Here it is:
for i, detected_box in enumerate(detect_boxes):
box = detected_box["box"]
face_img = img[ box[1]:box[1] + box[3], box[0]:box[0] + box[2] ]
cv2.imwrite("face-{:03d}.jpg".format(i+1), face_img)
If you are using Kotlin in android then you can create Extension function.
Extension Functions are defined outside of any class - yet they reference the class name and can use this
. In our case we use applicationContext
.
So in Utility class you can define all extension functions.
Utility.kt
fun Context.loadJSONFromAssets(fileName: String): String {
return applicationContext.assets.open(fileName).bufferedReader().use { reader ->
reader.readText()
}
}
MainActivity.kt
You can define private function for load JSON data from assert like this:
lateinit var facilityModelList: ArrayList<FacilityModel>
private fun bindJSONDataInFacilityList() {
facilityModelList = ArrayList<FacilityModel>()
val facilityJsonArray = JSONArray(loadJSONFromAsserts("NDoH_facility_list.json")) // Extension Function call here
for (i in 0 until facilityJsonArray.length()){
val facilityModel = FacilityModel()
val facilityJSONObject = facilityJsonArray.getJSONObject(i)
facilityModel.Facility = facilityJSONObject.getString("Facility")
facilityModel.District = facilityJSONObject.getString("District")
facilityModel.Province = facilityJSONObject.getString("Province")
facilityModel.Subdistrict = facilityJSONObject.getString("Facility")
facilityModel.code = facilityJSONObject.getInt("code")
facilityModel.gps_latitude = facilityJSONObject.getDouble("gps_latitude")
facilityModel.gps_longitude = facilityJSONObject.getDouble("gps_longitude")
facilityModelList.add(facilityModel)
}
}
You have to pass facilityModelList
in your ListView
FacilityModel.kt
class FacilityModel: Serializable {
var District: String = ""
var Facility: String = ""
var Province: String = ""
var Subdistrict: String = ""
var code: Int = 0
var gps_latitude: Double= 0.0
var gps_longitude: Double= 0.0
}
In my case JSON response start with JSONArray
[
{
"code": 875933,
"Province": "Eastern Cape",
"District": "Amathole DM",
"Subdistrict": "Amahlathi LM",
"Facility": "Amabele Clinic",
"gps_latitude": -32.6634,
"gps_longitude": 27.5239
},
{
"code": 455242,
"Province": "Eastern Cape",
"District": "Amathole DM",
"Subdistrict": "Amahlathi LM",
"Facility": "Burnshill Clinic",
"gps_latitude": -32.7686,
"gps_longitude": 27.055
}
]
Once you have put the values into the JSONObject then put the JSONObject into the JSONArray staright after.
Something like this maybe:
jsonObj.put("value1", 1);
jsonObj.put("value2", 900);
jsonObj.put("value3", 1368349);
jsonArray.put(jsonObj);
Then create new JSONObject, put the other values into it and add it to the JSONArray:
jsonObj.put("value1", 2);
jsonObj.put("value2", 1900);
jsonObj.put("value3", 136856);
jsonArray.put(jsonObj);
I know that this is old, but I've found that (while using Pillow) opening the file by using open(fp, 'w')
and then saving the file will work. E.g:
with open(fp, 'w') as f:
result.save(f)
fp
being the file path, of course.
You would still need to go through the DataTable
class. But you can do so using your DataRow
instance by using the Table
property.
foreach (DataColumn c in dr.Table.Columns) //loop through the columns.
{
MessageBox.Show(c.ColumnName);
}
It seems you don't want to keep the whole DataTable as a copy, because you only need some rows, right? If you got a creteria you can specify with a select on the table, you could copy just those rows to an extra backup array of DataRow like
DataRow[] rows = sourceTable.Select("searchColumn = value");
The .Select() function got several options and this one e.g. can be read as a SQL
SELECT * FROM sourceTable WHERE searchColumn = value;
Then you can import the rows you want as described above.
targetTable.ImportRows(rows[n])
...for any valid n you like, but the columns need to be the same in each table.
Some things you should know about ImportRow is that there will be errors during runtime when using primary keys!
First I wanted to check whether a row already existed which also failed due to a missing primary key, but then the check always failed. In the end I decided to clear the existing rows completely and import the rows I wanted again.
The second issue did help to understand what happens. The way I'm using the import function is to duplicate rows with an exchanged entry in one column. I realized that it always changed and it still was a reference to the row in the array. I first had to import the original and then change the entry I wanted.
The reference also explains the primary key errors that appeared when I first tried to import the row as it really was doubled up.
The Arrays class in Java has a static sort function, which you can invoke with Arrays.sort(numArray)
.
Arrays.sort(numArray);
double median;
if (numArray.length % 2 == 0)
median = ((double)numArray[numArray.length/2] + (double)numArray[numArray.length/2 - 1])/2;
else
median = (double) numArray[numArray.length/2];
eburgos, I've modified your code slightly because when you have multiple datatables in your dataset it was just overwriting them in the spreadsheet so you were only left with one sheet in the workbook. I basically just moved the part where the workbook is created out of the loop. Here is the updated code.
private void ExportDSToExcel(DataSet ds, string destination)
{
using (var workbook = SpreadsheetDocument.Create(destination, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook))
{
var workbookPart = workbook.AddWorkbookPart();
workbook.WorkbookPart.Workbook = new DocumentFormat.OpenXml.Spreadsheet.Workbook();
workbook.WorkbookPart.Workbook.Sheets = new DocumentFormat.OpenXml.Spreadsheet.Sheets();
uint sheetId = 1;
foreach (DataTable table in ds.Tables)
{
var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData();
sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData);
DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>();
string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart);
if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0)
{
sheetId =
sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = table.TableName };
sheets.Append(sheet);
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
List<String> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow dsrow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
foreach (String col in columns)
{
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(dsrow[col].ToString()); //
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
}
}
}
By using Image.alpha_composite
, the solution by Yuji 'Tomita' Tomita become simpler. This code can avoid a tuple index out of range
error if png has no alpha channel.
from PIL import Image
png = Image.open(img_path).convert('RGBA')
background = Image.new('RGBA', png.size, (255,255,255))
alpha_composite = Image.alpha_composite(background, png)
alpha_composite.save('foo.jpg', 'JPEG', quality=80)
You could just use
DataGridView1.CurrentRow.Cells["ColumnName"].Value
The way of dknaack does not work for me, I found this solution as well:
@Html.DropDownList("Chapters", ViewBag.Chapters as SelectList,
"Select chapter", new { @onchange = "location = this.value;" })
where
@Html.DropDownList(controlName, ViewBag.property + cast, "Default value", @onchange event)
In the controller you can add:
DbModel db = new DbModel(); //entity model of Entity Framework
ViewBag.Chapters = new SelectList(db.T_Chapter, "Id", "Name");
Simply you can write the following code snippet to convert an OpenCV image into a grey scale image
import cv2
image = cv2.imread('image.jpg',0)
cv2.imshow('grey scale image',image)
Observe that the image.jpg and the code must be saved in same folder.
Note that:
('image.jpg')
gives a RGB image('image.jpg',0)
gives Grey Scale Image.in OpenCV 3.0 you can use it easily as follow:
#combine 2 images same as to concatenate images with two different sizes
h1, w1 = img1.shape[:2]
h2, w2 = img2.shape[:2]
#create empty martrix (Mat)
res = np.zeros(shape=(max(h1, h2), w1 + w2, 3), dtype=np.uint8)
# assign BGR values to concatenate images
for i in range(res.shape[2]):
# assign img1 colors
res[:h1, :w1, i] = np.ones([img1.shape[0], img1.shape[1]]) * img1[:, :, i]
# assign img2 colors
res[:h2, w1:w1 + w2, i] = np.ones([img2.shape[0], img2.shape[1]]) * img2[:, :, i]
output_img = res.astype('uint8')
I solved this problem by doing the "subselect" like it:
string newQuery = "select * from (" + query + ") as temp";
When do it on mysql, all collunms properties (unique, non-null ...) will be cleared.
it works for me, just change: Provider=Microsoft.Jet.OLEDB.4.0 (VS2013)
OleDbConnection connection = new OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Z:\\GENERAL\\OFMPTP_PD_SG.MDB");
DataSet DS = new DataSet();
connection.Open();
string query =
@"SELECT * from MONTHLYPROD";
OleDbDataAdapter DBAdapter = new OleDbDataAdapter();
DBAdapter.SelectCommand = new OleDbCommand(query, connection);
DBAdapter.Fill(DS);
Luis Montoya
most simple solution would be to set a boolean var. if to true where you do the insert statement and then in the outter loop check this and insert the tweet there if the boolean is true...
You can access column name specifically like this too if you don't want to loop through all columns:
table.Columns[1].ColumnName
You should probably set the property dt.Columns["columnName"].ReadOnly = false;
before.
I don't have a windows box handy to try this but I think you can use a DataView and do something like so:
DataView view = new DataView(ds.Tables["MyTable"]);
view.RowFilter = "MyValue = 42"; // MyValue here is a column name
// Delete these rows.
foreach (DataRowView row in view)
{
row.Delete();
}
I haven't tested this, though. You might give it a try.
sort_mixed
Object.defineProperty(Array.prototype,"sort_mixed",{
value: function () { // do not use arrow function
var N = [], L = [];
this.forEach(e => {
Number.isFinite(e) ? N.push(e) : L.push(e);
});
N.sort((a, b) => a - b);
L.sort();
[...N, ...L].forEach((v, i) => this[i] = v);
return this;
})
try a =[1,'u',"V",10,4,"c","A"].sort_mixed(); console.log(a)
We can use below Curl command in Windows Command prompt to send the request.
Use the Curl command below, replace single quote with double quotes, remove quotes where they are not there in below format and use the ^
symbol.
curl http://localhost:7101/module/url ^
-d @D:/request.xml ^
-H "Content-Type: text/xml" ^
-H "SOAPAction: process" ^
-H "Authorization: Basic xyz" ^
-X POST
I've settled on one based on Nultyi's answer:
MISSING=$(dpkg --get-selections $PACKAGES 2>&1 | grep -v 'install$' | awk '{ print $6 }')
# Optional check here to skip bothering with apt-get if $MISSING is empty
sudo apt-get install $MISSING
Basically, the error message from dpkg --get-selections
is far easier to parse than most of the others, because it doesn't include statuses like "deinstall". It also can check multiple packages simultaneously, something you can't do with just error codes.
Explanation/example:
$ dpkg --get-selections python3-venv python3-dev screen build-essential jq
dpkg: no packages found matching python3-venv
dpkg: no packages found matching python3-dev
screen install
build-essential install
dpkg: no packages found matching jq
So grep removes installed packages from the list, and awk pulls the package names out from the error message, resulting in MISSING='python3-venv python3-dev jq'
, which can be trivially inserted into an install command.
I'm not blindly issuing an apt-get install $PACKAGES
because as mentioned in the comments, this can unexpectedly upgrade packages you weren't planning on; not really a good idea for automated processes that are expected to be stable.
In my case there was an issue with the Database as one of the Stored Procs was consuming all the CPU causing high DB response times. Once this was killed issue got resolved.
On Ubuntu, when mysqli is missing, execute the following,
sudo apt-get install php7.x-mysqli
sudo service apache2 restart
Replace 7.x
with your PHP version.
Note: This could be 7.0 and up, but for example Drupal recommends PHP 7.2 on grounds of security among others.
To check your PHP version, on the command-line type:
php -v
You do exactly the same if you are missing mbstring:
apt-get install php7.x-mbstring
service apache2 restart
I recently had to do this for phpMyAdmin when upgrading PHP from 7.0 to 7.2 on Ubuntu 16.04 (Xenial Xerus).
Now dstat provides the feature to find out in your running system which process is candidate for getting killed by oom mechanism
dstat --top-oom
--out-of-memory---
kill score
java 77
java 77
java 77
and as per man page
--top-oom
show process that will be killed by OOM the first
Here is an example I think that will help you
<!DOCTYPE html>
<html>
<head>
<script src="js/min.js"></script>
<script src="js/pdf.js"></script>
<script>
$(function(){
var doc = new jsPDF();
var specialElementHandlers = {
'#editor': function (element, renderer) {
return true;
}
};
$('#cmd').click(function () {
var table = tableToJson($('#StudentInfoListTable').get(0))
var doc = new jsPDF('p','pt', 'a4', true);
doc.cellInitialize();
$.each(table, function (i, row){
console.debug(row);
$.each(row, function (j, cell){
doc.cell(10, 50,120, 50, cell, i); // 2nd parameter=top margin,1st=left margin 3rd=row cell width 4th=Row height
})
})
doc.save('sample-file.pdf');
});
function tableToJson(table) {
var data = [];
// first row needs to be headers
var headers = [];
for (var i=0; i<table.rows[0].cells.length; i++) {
headers[i] = table.rows[0].cells[i].innerHTML.toLowerCase().replace(/ /gi,'');
}
// go through cells
for (var i=0; i<table.rows.length; i++) {
var tableRow = table.rows[i];
var rowData = {};
for (var j=0; j<tableRow.cells.length; j++) {
rowData[ headers[j] ] = tableRow.cells[j].innerHTML;
}
data.push(rowData);
}
return data;
}
});
</script>
</head>
<body>
<div id="table">
<table id="StudentInfoListTable">
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th>Track</th>
<th>S.S.C Roll</th>
<th>S.S.C Division</th>
<th>H.S.C Roll</th>
<th>H.S.C Division</th>
<th>District</th>
</tr>
</thead>
<tbody>
<tr>
<td>alimon </td>
<td>Email</td>
<td>1</td>
<td>2222</td>
<td>as</td>
<td>3333</td>
<td>dd</td>
<td>33</td>
</tr>
</tbody>
</table>
<button id="cmd">Submit</button>
</body>
</html>
Here the output
You can use filter like this
angular.module('app').filter('trustAs', ['$sce',
function($sce) {
return function (input, type) {
if (typeof input === "string") {
return $sce.trustAs(type || 'html', input);
}
console.log("trustAs filter. Error. input isn't a string");
return "";
};
}
]);
usage
<div ng-bind-html="myData | trustAs"></div>
it can be used for other resource types, for example source link for iframes and other types declared here
The parameters of isset()
should be separated by a comma sign (,
) and not a dot sign (.
). Your current code concatenates the variables into a single parameter, instead of passing them as separate parameters.
So the original code evaluates the variables as a unified string
value:
isset($_POST['search_term'] . $_POST['postcode']) // Incorrect
While the correct form evaluates them separately as variables:
isset($_POST['search_term'], $_POST['postcode']) // Correct
Change
vote = input('Enter the name of the player you wish to vote for')
to
vote = int(input('Enter the name of the player you wish to vote for'))
You are getting the input from the console as a string, so you must cast that input string to an int
object in order to do numerical operations.
import android.support.v7.app.ActionBarActivity;
public class MainActivity extends ActionBarActivity {
getSupportActionBar()
instead of getActionBar()
import android.support.v7.app.ActionBarActivity;
I recommend to use:
import android.support.v7.app.AppCompatActivity
stdClass is the default PHP object. stdClass has no properties, methods or parent. It does not support magic methods, and implements no interfaces.
When you cast a scalar or array as Object, you get an instance of stdClass. You can use stdClass whenever you need a generic object instance.
<?php
// ways of creating stdClass instances
$x = new stdClass;
$y = (object) null; // same as above
$z = (object) 'a'; // creates property 'scalar' = 'a'
$a = (object) array('property1' => 1, 'property2' => 'b');
?>
stdClass is NOT a base class! PHP classes do not automatically inherit from any class. All classes are standalone, unless they explicitly extend another class. PHP differs from many object-oriented languages in this respect.
<?php
// CTest does not derive from stdClass
class CTest {
public $property1;
}
$t = new CTest;
var_dump($t instanceof stdClass); // false
var_dump(is_subclass_of($t, 'stdClass')); // false
echo get_class($t) . "\n"; // 'CTest'
echo get_parent_class($t) . "\n"; // false (no parent)
?>
You cannot define a class named 'stdClass' in your code. That name is already used by the system. You can define a class named 'Object'.
You could define a class that extends stdClass, but you would get no benefit, as stdClass does nothing.
(tested on PHP 5.2.8)
input[type="button"] {
border: none;
outline:none;
}
Wildcards can only be used in the ServerAlias
rather than the ServerName
. Something which had me stumped.
For your use case, the following should suffice
<VirtualHost *:80>
ServerAlias *.example.com
VirtualDocumentRoot /var/www/%1/
</VirtualHost>
If you want to add custom ObjectMapper for registering custom serializers, try my answer.
In my case (Spring 3.2.4 and Jackson 2.3.1), XML configuration for custom serializer:
<mvc:annotation-driven>
<mvc:message-converters register-defaults="false">
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper">
<bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
<property name="serializers">
<array>
<bean class="com.example.business.serializer.json.CustomObjectSerializer"/>
</array>
</property>
</bean>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
was in unexplained way overwritten back to default by something.
This worked for me:
@JsonSerialize(using = CustomObjectSerializer.class)
public class CustomObject {
private Long value;
public Long getValue() {
return value;
}
public void setValue(Long value) {
this.value = value;
}
}
public class CustomObjectSerializer extends JsonSerializer<CustomObject> {
@Override
public void serialize(CustomObject value, JsonGenerator jgen,
SerializerProvider provider) throws IOException,JsonProcessingException {
jgen.writeStartObject();
jgen.writeNumberField("y", value.getValue());
jgen.writeEndObject();
}
@Override
public Class<CustomObject> handledType() {
return CustomObject.class;
}
}
No XML configuration (<mvc:message-converters>(...)</mvc:message-converters>
) is needed in my solution.
Targeting all elements but html : *:not(html)
caused problems on other elements in my case. It modified the stacking context, causing some z-index to break.
We should better try to target the right element and apply -webkit-transform: translate3d(0,0,0)
to it only.
Edit : sometimes the translate3D(0,0,0)
doesn't work, we can use the following method, targeting the right element :
@keyframes redraw{
0% {opacity: 1;}
100% {opacity: .99;}
}
// ios redraw fix
animation: redraw 1s linear infinite;
The last two lines are important to align in center:
.f01 {
background-color: rgb(16, 216, 252);
padding: 100px;
text-align: left;
margin: auto;
display: table;
}
Simple hacky way is to rename Updates folder in C:\Program Files (x86)\Google. Done it to freeze my chrome at 44 untill proper NPAPI replacement is supported by majority of plugins.
Add
[config]="{backdrop: 'static'}"
to the model code.
Try This
<script>
var phpadd= <?php echo add(1,2);?> //call the php add function
var phpmult= <?php echo mult(1,2);?> //call the php mult function
var phpdivide= <?php echo divide(1,2);?> //call the php divide function
</script>
I am having the same problem, I found the below on the web somewhere....
Event handlers in Docs are a little tricky though. Because docs can handle multiple simultaneous edits by multiple users, the event handlers are handled server-side. The major issue with this structure is that when an event trigger script fails, it fails on the server. If you want to see the debug info you'll need to setup an explicit trigger under the triggers menu that emails you the debug info when the event fails or else it will fail silently.
You can try this:
for file in *.jpg;
do
mv $file $somestring_${file:((-7))}
done
You can see "parameter expansion" in man bash
to understand the above better.
You can try:
SELECT id FROM your_table WHERE id = (SELECT MAX(id) FROM your_table)
Where id
is a primary key of the your_table
JSmooth .exe wrapper
JSmooth is a Java Executable Wrapper. It creates native Windows launchers (standard .exe) for your Java applications. It makes java deployment much smoother and user-friendly, as it is able to find any installed Java VM by itself. When no VM is available, the wrapper can automatically download and install a suitable JVM, or simply display a message or redirect the user to a website.
JSmooth provides a variety of wrappers for your java application, each of them having their own behavior: Choose your flavor!
Download: http://jsmooth.sourceforge.net/
JarToExe 1.8 Jar2Exe is a tool to convert jar files into exe files. Following are the main features as describe on their website:
Can generate “Console”, “Windows GUI”, “Windows Service” three types of .exe files.
Generated .exe files can add program icons and version information. Generated .exe files can encrypt and protect java programs, no temporary files will be generated when the program runs.
Generated .exe files provide system tray icon support. Generated .exe files provide record system event log support. Generated windows service .exe files are able to install/uninstall itself, and support service pause/continue.
Executor
Package your Java application as a jar, and Executor will turn the jar into a Windows .exe file, indistinguishable from a native application. Simply double-clicking the .exe file will invoke the Java Runtime Environment and launch your application.
I had a simular issue and resolved it using android:adjustViewBounds="true"
on the ImageView.
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:contentDescription="@string/banner_alt"
android:src="@drawable/banner_portrait" />
Goto window+R and type services.msc and press enter.
Then start SQL server manually if not automatically started.
Then you try to login, it must be works.
If you call it like this: $ python myfile.py var1 var2 var3
import sys
var1 = sys.argv[1]
var2 = sys.argv[2]
var3 = sys.argv[3]
Similar to arrays you also have sys.argv[0]
which is always the current working directory.
Warning: The following is only suitable for small tables (think < 1000 rows)
Here is a solution that uses entity framework (not SQL) to delete the rows, so it is not SQL Engine(R/DBM) specific.
This assumes that you're doing this for testing or some similar situation. Either
Simply call:
VotingContext.Votes.RemoveRange(VotingContext.Votes);
Assuming this context:
public class VotingContext : DbContext
{
public DbSet<Vote> Votes{get;set;}
public DbSet<Poll> Polls{get;set;}
public DbSet<Voter> Voters{get;set;}
public DbSet<Candidacy> Candidates{get;set;}
}
For tidier code you can declare the following extension method:
public static class EntityExtensions
{
public static void Clear<T>(this DbSet<T> dbSet) where T : class
{
dbSet.RemoveRange(dbSet);
}
}
Then the above becomes:
VotingContext.Votes.Clear();
VotingContext.Voters.Clear();
VotingContext.Candidacy.Clear();
VotingContext.Polls.Clear();
await VotingTestContext.SaveChangesAsync();
I recently used this approach to clean up my test database for each testcase run (it´s obviously faster than recreating the DB from scratch each time, though I didn´t check the form of the delete commands that were generated).
Why can it be slow?
So if you're working with serious amount of data you'll kill the SQL server process (it will consume all the memory) and same thing for the IIS process since EF will cache all the data same way as SQL server. Don't use this one if your table contains serious amount of data.
An inner class is a friend of the class it is defined within.
So, yes; an object of type Outer::Inner
can access the member variable var
of an object of type Outer
.
Unlike Java though, there is no correlation between an object of type Outer::Inner
and an object of the parent class. You have to make the parent child relationship manually.
#include <string>
#include <iostream>
class Outer
{
class Inner
{
public:
Inner(Outer& x): parent(x) {}
void func()
{
std::string a = "myconst1";
std::cout << parent.var << std::endl;
if (a == MYCONST)
{ std::cout << "string same" << std::endl;
}
else
{ std::cout << "string not same" << std::endl;
}
}
private:
Outer& parent;
};
public:
Outer()
:i(*this)
,var(4)
{}
Outer(Outer& other)
:i(other)
,var(22)
{}
void func()
{
i.func();
}
private:
static const char* const MYCONST;
Inner i;
int var;
};
const char* const Outer::MYCONST = "myconst";
int main()
{
Outer o1;
Outer o2(o1);
o1.func();
o2.func();
}
It's valid to omit them in HTML4:
7.3 The HTML element
start tag: optional, End tag: optional
7.4.1 The HEAD element
start tag: optional, End tag: optional
http://www.w3.org/TR/html401/struct/global.html
In HTML5, there are no "required" or "optional" elements exactly, as HTML5 syntax is more loosely defined. For example, title
:
The title element is a required child in most situations, but when a higher-level protocol provides title information, e.g. in the Subject line of an e-mail when HTML is used as an e-mail authoring format, the title element can be omitted.
http://www.w3.org/TR/html5/semantics.html#the-title-element-0
It's not valid to omit them in true XHTML5, though that is almost never used (versus XHTML-acting-like-HTML5).
However, from a practical standpoint you often want browsers to run in "standards mode," for predictability in rendering HTML and CSS. Providing a DOCTYPE and a more structured HTML tree will guarantee more predictable cross-browser results.
Following document published by W3C also describes the differences between SOAP 1.1 and 1.2:
Use MySQL's STR_TO_DATE()
function to parse the string that you're attempting to insert:
INSERT INTO tblInquiry (fldInquiryReceivedDateTime) VALUES
(STR_TO_DATE('5/15/2012 8:06:26 AM', '%c/%e/%Y %r'))
Here are a couple good sites to check out for that,
http://www.tripwiremagazine.com/2011/10/css-menu-and-navigation.html (Lots of examples)
http://webdesignerwall.com/tutorials/css3-dropdown-menu (1 example more tutorial like)
Hope this is helpful information!
i am sharing code form my project using regular expression you can do this...
String ChildBelowList = "";
if (!Childbelow.isEmpty()) {
for (int iCB = 0; iCB < Childbelow.size(); iCB++) {
ChildBelowList = ChildBelowList += Childbelow.get(iCB) + ",";
}
ChildBelowList = ChildBelowList.replaceAll("(^(\\s*?\\,+)+\\s?)|(^\\s+)|(\\s+$)|((\\s*?\\,+)+\\s?$)", "");
tv_childbelow.setText(ChildBelowList);
} else {
ll_childbelow.setVisibility(View.GONE);
}
If you have Apache add this to the .htaccess
file:
<FilesMatch "\.(?i:pdf)$">
ForceType application/octet-stream
Header set Content-Disposition attachment
</FilesMatch>
A shorter example
private static final Charset UTF_8 = Charset.forName("UTF-8");
String text = "Hello World!";
byte[] bytes = text.getBytes(UTF_8);
System.out.println("bytes= "+Arrays.toString(bytes));
System.out.println("text again= "+new String(bytes, UTF_8));
prints
bytes= [72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33]
text again= Hello World!
From Linux Change Default User Home Directory While Adding A New User:
Simply open this file using a text editor, type:
vi /etc/default/useradd
The default home directory defined by HOME variable, find line that read as follows:
HOME=/home
Replace with:
HOME=/iscsi/user
Save and close the file. Now you can add user using regular useradd command:
# useradd vivek # passwd vivek
Verify user information:
# finger vivek
Jalf already linked to it, but the GOTW puts it quite nicely why exception specifications are not as useful as one might hope:
int Gunc() throw(); // will throw nothing (?)
int Hunc() throw(A,B); // can only throw A or B (?)
Are the comments correct? Not quite.
Gunc()
may indeed throw something, andHunc()
may well throw something other than A or B! The compiler just guarantees to beat them senseless if they do… oh, and to beat your program senseless too, most of the time.
That's just what it comes down to, you probably just will end up with a call to terminate()
and your program dying a quick but painful death.
The GOTWs conclusion is:
So here’s what seems to be the best advice we as a community have learned as of today:
- Moral #1: Never write an exception specification.
- Moral #2: Except possibly an empty one, but if I were you I’d avoid even that.
A fleshed out version of Michael Foukarakis post (since I don't have the "reputation" to add a comment to that post yet):
#include <stdio.h>
#include <string.h>
void print(unsigned char *byte_array, int byte_array_size)
{
int i = 0;
printf("0x");
for(; i < byte_array_size; i++)
{
printf("%02x", byte_array[i]);
}
printf("\n");
}
int convert(const char *hex_str, unsigned char *byte_array, int byte_array_max)
{
int hex_str_len = strlen(hex_str);
int i = 0, j = 0;
// The output array size is half the hex_str length (rounded up)
int byte_array_size = (hex_str_len+1)/2;
if (byte_array_size > byte_array_max)
{
// Too big for the output array
return -1;
}
if (hex_str_len % 2 == 1)
{
// hex_str is an odd length, so assume an implicit "0" prefix
if (sscanf(&(hex_str[0]), "%1hhx", &(byte_array[0])) != 1)
{
return -1;
}
i = j = 1;
}
for (; i < hex_str_len; i+=2, j++)
{
if (sscanf(&(hex_str[i]), "%2hhx", &(byte_array[j])) != 1)
{
return -1;
}
}
return byte_array_size;
}
void main()
{
char *examples[] = { "", "5", "D", "5D", "5Df", "deadbeef10203040b00b1e50", "02invalid55" };
unsigned char byte_array[128];
int i = 0;
for (; i < sizeof(examples)/sizeof(char *); i++)
{
int size = convert(examples[i], byte_array, 128);
if (size < 0)
{
printf("Failed to convert '%s'\n", examples[i]);
}
else if (size == 0)
{
printf("Nothing to convert for '%s'\n", examples[i]);
}
else
{
print(byte_array, size);
}
}
}
The best way to compare 2 strings ignoring the case of the letters is to use the String.Equals static method specifying an ordinal ignore case string comparison. This is also the fastest way, much faster than converting the strings to lower or upper case and comparing them after that.
I tested the performance of both approaches and the ordinal ignore case string comparison was more than 9 times faster! It is also more reliable than converting strings to lower or upper case (check out the Turkish i problem). So always use the String.Equals method to compare strings for equality:
String.Equals(string1, string2, StringComparison.OrdinalIgnoreCase);
If you want to perform a culture specific string comparison you can use the following code:
String.Equals(string1, string2, StringComparison.CurrentCultureIgnoreCase);
Please note that the second example uses the the string comparison logic of the current culture, which makes it slower than the "ordinal ignore case" comparison in the first example, so if you don't need any culture specific string comparison logic and you are after maximum performance, use the "ordinal ignore case" comparison.
For more information, read the full story on my blog.
To do this you want to loop through each row of your query results and use this info for each of your drop down's options. You should be able to adjust the code below fairly easily to meet your needs.
// Assume $db is a PDO object
$query = $db->query("YOUR QUERY HERE"); // Run your query
echo '<select name="DROP DOWN NAME">'; // Open your drop down box
// Loop through the query results, outputing the options one by one
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
echo '<option value="'.$row['something'].'">'.$row['something'].'</option>';
}
echo '</select>';// Close your drop down box
The best approach I know is to do an update, followed by an insert. The "overhead of a select" is necessary, but it is not a terrible burden since you are searching on the primary key, which is fast.
You should be able to modify the below statements with your table & field names to do what you want.
--first, update any matches
UPDATE DESTINATION_TABLE DT
SET
MY_FIELD1 = (
SELECT MY_FIELD1
FROM SOURCE_TABLE ST
WHERE ST.PRIMARY_KEY = DT.PRIMARY_KEY
)
,MY_FIELD2 = (
SELECT MY_FIELD2
FROM SOURCE_TABLE ST
WHERE ST.PRIMARY_KEY = DT.PRIMARY_KEY
)
WHERE EXISTS(
SELECT ST2.PRIMARY_KEY
FROM
SOURCE_TABLE ST2
,DESTINATION_TABLE DT2
WHERE ST2.PRIMARY_KEY = DT2.PRIMARY_KEY
);
--second, insert any non-matches
INSERT INTO DESTINATION_TABLE(
MY_FIELD1
,MY_FIELD2
)
SELECT
ST.MY_FIELD1
,NULL AS MY_FIELD2 --insert NULL into this field
FROM
SOURCE_TABLE ST
WHERE NOT EXISTS(
SELECT DT2.PRIMARY_KEY
FROM DESTINATION_TABLE DT2
WHERE DT2.PRIMARY_KEY = ST.PRIMARY_KEY
);
Delete the $(ARCHS_STANDARD)
and add the $(ARCHS_STANDARD_32_BIT)
.
If you got a Apache Maven project, it's easy to use this package in your project. Just specify it in your pom.xml
:
<project>
...
<properties>
<version.commons-io>2.4</version.commons-io>
</properties>
<dependencies>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${version.commons-io}</version>
</dependency>
</dependencies>
...
</project>
You should be able to use the WildcardFileFilter
. Just use System.getProperty("user.dir")
to get the working directory. Try this:
public static void main(String[] args) {
File[] files = (new File(System.getProperty("user.dir"))).listFiles(new WildcardFileFilter(args));
//...
}
You should not need to replace *
with [.*]
, assuming wildcard filter uses java.regex.Pattern
. I have not tested this, but I do use patterns and file filters constantly.
You can also use replaceAll(search, replaceWith)
[MDN].
Then, make sure you have a string by wrapping one type of quotes by a different type:
'a "b" c'.replaceAll('"', "'")
// result: "a 'b' c"
'a "b" c'.replaceAll(`"`, `'`)
// result: "a 'b' c"
// Using RegEx. You MUST use a global RegEx(Meaning it'll match all occurrences).
'a "b" c'.replaceAll(/\"/g, "'")
// result: "a 'b' c"
Important(!) if you choose regex:
when using a
regexp
you have to set the global ("g") flag; otherwise, it will throw a TypeError: "replaceAll must be called with a global RegExp".
Another option is to use showtext
package which supports more types of fonts (TrueType, OpenType, Type 1, web fonts, etc.) and more graphics devices, and avoids using external software such as Ghostscript.
# install.packages('showtext', dependencies = TRUE)
library(showtext)
Import some Google Fonts
# https://fonts.google.com/featured/Superfamilies
font_add_google("Montserrat", "Montserrat")
font_add_google("Roboto", "Roboto")
Load font from the current search path into showtext
# Check the current search path for fonts
font_paths()
#> [1] "C:\\Windows\\Fonts"
# List available font files in the search path
font_files()
#> [1] "AcadEref.ttf"
#> [2] "AGENCYB.TTF"
#> [428] "pala.ttf"
#> [429] "palab.ttf"
#> [430] "palabi.ttf"
#> [431] "palai.ttf"
# syntax: font_add(family = "<family_name>", regular = "/path/to/font/file")
font_add("Palatino", "pala.ttf")
font_families()
#> [1] "sans" "serif" "mono" "wqy-microhei"
#> [5] "Montserrat" "Roboto" "Palatino"
## automatically use showtext for new devices
showtext_auto()
Plot: need to open Windows graphics device as showtext
does not work well with RStudio built-in graphics device
# https://github.com/yixuan/showtext/issues/7
# https://journal.r-project.org/archive/2015-1/qiu.pdf
# `x11()` on Linux, or `quartz()` on Mac OS
windows()
myFont1 <- "Montserrat"
myFont2 <- "Roboto"
myFont3 <- "Palatino"
library(ggplot2)
a <- ggplot(mtcars, aes(x = wt, y = mpg)) +
geom_point() +
ggtitle("Fuel Efficiency of 32 Cars") +
xlab("Weight (x1000 lb)") + ylab("Miles per Gallon") +
theme(text = element_text(size = 16, family = myFont1)) +
annotate("text", 4, 30, label = 'Palatino Linotype',
family = myFont3, size = 10) +
annotate("text", 1, 11, label = 'Roboto', hjust = 0,
family = myFont2, size = 10)
## On-screen device
print(a)
## Save to PNG
ggsave("plot_showtext.png", plot = a,
type = 'cairo',
width = 6, height = 6, dpi = 150)
## Save to PDF
ggsave("plot_showtext.pdf", plot = a,
device = cairo_pdf,
width = 6, height = 6, dpi = 150)
## turn showtext off if no longer needed
showtext_auto(FALSE)
Edit: another workaround to use showtext
in RStudio. Run the following code at the beginning of the R session (source)
trace(grDevices::png, exit = quote({
showtext::showtext_begin()
}), print = FALSE)
Assuming their updates are on master, and you are on the branch you want to merge the changes into.
git remote add origin https://github.com/<github-username>/<repo-name>.git
git pull origin master
Also note that you will then want to push the merge back to your copy of the repository:
git push origin master
My answer might not apply to everyone.
Node version: v10.16.0
NPM: 6.9.0
I was having a lot of trouble using node-sass and node-sass-middleware. They are interesting packages because they are widely used (millions of downloads weekly), but their githubs show a limited dependencies and coverage. I was updating an older platform I'd been working on.
What I ended up having to do was:
1) Manually Delete node_modules
2) Manually Delete package-lock.json
3) sudo npm install node-sass --unsafe-perm=true --allow-root
4) sudo npm install node-sass-middleware --unsafe-perm=true --allow-root
I had the following help, thanks!
Pre-built binaries not found for [email protected] and [email protected]
Error: EACCES: permission denied when trying to install ESLint using npm
SQL Server doesn't allow you to pass parameters to a procedure that you haven't defined. I think the closest you can get to this sort of design is to use optional parameters like so:
CREATE PROCEDURE GetTaskEvents
@TaskName varchar(50),
@ID int = NULL
AS
BEGIN
-- SP Logic
END;
You would need to include every possible parameter that you might use in the definition. Then you'd be free to call the procedure either way:
EXEC GetTaskEvents @TaskName = 'TESTTASK', @ID = 2;
EXEC GetTaskEvents @TaskName = 'TESTTASK'; -- @ID gets NULL here
I encountered the same problem. When the folder /worker
is mounted to the container - all of it's content will be syncronized (so the node_modules folder will disappear if you don't have it locally.)
Due to incompatible npm packages based on OS, I could not just install the modules locally - then launch the container, so..
My solution to this, was to wrap the source in a src
folder, then link node_modules
into that folder, using this index.js file. So, the index.js
file is now the starting point of my application.
When I run the container, I mounted the /app/src
folder to my local src
folder.
So the container folder looks something like this:
/app
/node_modules
/src
/node_modules -> ../node_modules
/app.js
/index.js
It is ugly, but it works..
If your keys are dynamic I would suggest deserializing directly into a DataTable:
class SampleData
{
[JsonProperty(PropertyName = "items")]
public System.Data.DataTable Items { get; set; }
}
public void DerializeTable()
{
const string json = @"{items:["
+ @"{""Name"":""AAA"",""Age"":""22"",""Job"":""PPP""},"
+ @"{""Name"":""BBB"",""Age"":""25"",""Job"":""QQQ""},"
+ @"{""Name"":""CCC"",""Age"":""38"",""Job"":""RRR""}]}";
var sampleData = JsonConvert.DeserializeObject<SampleData>(json);
var table = sampleData.Items;
// write tab delimited table without knowing column names
var line = string.Empty;
foreach (DataColumn column in table.Columns)
line += column.ColumnName + "\t";
Console.WriteLine(line);
foreach (DataRow row in table.Rows)
{
line = string.Empty;
foreach (DataColumn column in table.Columns)
line += row[column] + "\t";
Console.WriteLine(line);
}
// Name Age Job
// AAA 22 PPP
// BBB 25 QQQ
// CCC 38 RRR
}
You can determine the DataTable column names and types dynamically once deserialized.
You can try following sample http://jsfiddle.net/xKJB8/3/
<img id="preview" src="http://www.gravatar.com/avatar/0e39d18b89822d1d9871e0d1bc839d06?s=128&d=identicon&r=PG">
<canvas id="myCanvas" />
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
var img = document.getElementById("preview");
ctx.drawImage(img, 10, 10);
alert(c.toDataURL());
AddressSanitizer (ASan) is a fast memory error detector. It finds use-after-free and {heap,stack,global}-buffer overflow bugs in C/C++ programs. It finds:
This tool is very fast. The average slowdown of the instrumented program is ~2x.
I faced this error when I created second activity in my project in the newly updated Android Studio,I solved it simply by copy pasting the whole xml code from first layout to the second and then I just removed the code that's unnecessary.
How about this: convert it to a unix timestamp first, subtract 60*60*24 (exactly one day in seconds), and then grab the date from that.
$newDate = strtotime($date_raw) - 60*60*24;
echo date('Y-m-d',$newDate);
Note: as apokryfos has pointed out, this would technically be thrown off by daylight savings time changes where there would be a day with either 25 or 23 hours
This is realy old post but here is one my update what I made using correct answer. My solution also use jQuery.
Point of this is to use proper print view, include all stylesheets for the proper formatting and also to be supported in the most browsers.
function PrintElem(elem, title, offset)
{
// Title constructor
title = title || $('title').text();
// Offset for the print
offset = offset || 0;
// Loading start
var dStart = Math.round(new Date().getTime()/1000),
$html = $('html');
i = 0;
// Start building HTML
var HTML = '<html';
if(typeof ($html.attr('lang')) !== 'undefined') {
HTML+=' lang=' + $html.attr('lang');
}
if(typeof ($html.attr('id')) !== 'undefined') {
HTML+=' id=' + $html.attr('id');
}
if(typeof ($html.attr('xmlns')) !== 'undefined') {
HTML+=' xmlns=' + $html.attr('xmlns');
}
// Close HTML and start build HEAD
HTML+='><head>';
// Get all meta tags
$('head > meta').each(function(){
var $this = $(this),
$meta = '<meta';
if(typeof ($this.attr('charset')) !== 'undefined') {
$meta+=' charset=' + $this.attr('charset');
}
if(typeof ($this.attr('name')) !== 'undefined') {
$meta+=' name=' + $this.attr('name');
}
if(typeof ($this.attr('http-equiv')) !== 'undefined') {
$meta+=' http-equiv=' + $this.attr('http-equiv');
}
if(typeof ($this.attr('content')) !== 'undefined') {
$meta+=' content=' + $this.attr('content');
}
$meta+=' />';
HTML+= $meta;
i++;
}).promise().done(function(){
// Insert title
HTML+= '<title>' + title + '</title>';
// Let's pickup all CSS files for the formatting
$('head > link[rel="stylesheet"]').each(function(){
HTML+= '<link rel="stylesheet" href="' + $(this).attr('href') + '" />';
i++;
}).promise().done(function(){
// Print setup
HTML+= '<style>body{display:none;}@media print{body{display:block;}}</style>';
// Finish HTML
HTML+= '</head><body>';
HTML+= '<h1 class="text-center mb-3">' + title + '</h1>';
HTML+= elem.html();
HTML+= '</body></html>';
// Open new window
var printWindow = window.open('', 'PRINT', 'height=' + $(window).height() + ',width=' + $(window).width());
// Append new window HTML
printWindow.document.write(HTML);
printWindow.document.close(); // necessary for IE >= 10
printWindow.focus(); // necessary for IE >= 10*/
console.log(printWindow.document);
/* Make sure that page is loaded correctly */
$(printWindow).on('load', function(){
setTimeout(function(){
// Open print
printWindow.print();
// Close on print
setTimeout(function(){
printWindow.close();
return true;
}, 3);
}, (Math.round(new Date().getTime()/1000) - dStart)+i+offset);
});
});
});
}
Later you simple need something like this:
$(document).on('click', '.some-print', function() {
PrintElem($(this), 'My Print Title');
return false;
});
Try it.
For the MySql version 8.0.
Data Type Storage Required
TINYINT 1 byte
SMALLINT 2 bytes
MEDIUMINT 3 bytes
INT, INTEGER 4 bytes
BIGINT 8 bytes
FLOAT(p) 4 bytes if 0 <= p <= 24, 8 bytes if 25 <= p <= 53
FLOAT 4 bytes
DOUBLE, REAL 8 bytes
DECIMAL(M,D), NUMERIC(M,D) Varies; see following discussion
BIT(M) approximately (M+7)/8 bytes
Values for DECIMAL (and NUMERIC) columns are represented using a binary format that packs nine decimal (base 10) digits into four bytes. Storage for the integer and fractional parts of each value are determined separately. Each multiple of nine digits requires four bytes, and the “leftover” digits require some fraction of four bytes. The storage required for excess digits is given by the following table.
Date and Time Type Storage Requirements For TIME, DATETIME, and TIMESTAMP columns, the storage required for tables created before MySQL 5.6.4 differs from tables created from 5.6.4 on. This is due to a change in 5.6.4 that permits these types to have a fractional part, which requires from 0 to 3 bytes.
Data Type Storage Required Before MySQL 5.6.4 Storage Required as of MySQL 5.6.4
YEAR 1 byte 1 byte
DATE 3 bytes 3 bytes
TIME 3 bytes 3 bytes + fractional seconds storage
DATETIME 8 bytes 5 bytes + fractional seconds storage
TIMESTAMP 4 bytes 4 bytes + fractional seconds storage
As of MySQL 5.6.4, storage for YEAR and DATE remains unchanged. However, TIME, DATETIME, and TIMESTAMP are represented differently. DATETIME is packed more efficiently, requiring 5 rather than 8 bytes for the nonfractional part, and all three parts have a fractional part that requires from 0 to 3 bytes, depending on the fractional seconds precision of stored values.
Fractional Seconds Precision Storage Required
0 0 bytes
1, 2 1 byte
3, 4 2 bytes
5, 6 3 bytes
For example, TIME(0), TIME(2), TIME(4), and TIME(6) use 3, 4, 5, and 6 bytes, respectively. TIME and TIME(0) are equivalent and require the same storage.
For details about internal representation of temporal values, see MySQL Internals: Important Algorithms and Structures.
String Type Storage Requirements In the following table, M represents the declared column length in characters for nonbinary string types and bytes for binary string types. L represents the actual length in bytes of a given string value.
Data Type Storage Required
CHAR(M) The compact family of InnoDB row formats optimize storage for variable-length character sets. See COMPACT Row Format Characteristics. Otherwise, M × w bytes, <= M <= 255, where w is the number of bytes required for the maximum-length character in the character set.
BINARY(M) M bytes, 0 <= M <= 255
VARCHAR(M), VARBINARY(M) L + 1 bytes if column values require 0 - 255 bytes, L + 2 bytes if values may require more than 255 bytes
TINYBLOB, TINYTEXT L + 1 bytes, where L < 28
BLOB, TEXT L + 2 bytes, where L < 216
MEDIUMBLOB, MEDIUMTEXT L + 3 bytes, where L < 224
LONGBLOB, LONGTEXT L + 4 bytes, where L < 232
ENUM('value1','value2',...) 1 or 2 bytes, depending on the number of enumeration values (65,535 values maximum)
SET('value1','value2',...) 1, 2, 3, 4, or 8 bytes, depending on the number of set members (64 members maximum)
I prefer using HTTP Headers for this kind of contextual information.
For the total number of elements, I use the X-total-count
header.
For links to next, previous page, etc. I use HTTP Link
header:
http://www.w3.org/wiki/LinkHeader
Github does it the same way: https://developer.github.com/v3/#pagination
In my opinion, it's cleaner since it can be used also when you return content that doesn't support hyperlinks (i.e binaries, pictures).
such as this kind of dataframe, there are two levels of thecolumn name:
shop_id item_id date_block_num item_cnt_day
target
0 0 30 1 31
we can use this code:
df.columns = [col[0] if col[-1]=='' else col[-1] for col in df.columns.values]
result is:
shop_id item_id date_block_num target
0 0 30 1 31
Change the code where you load the partial view to:
@Html.Partial("_CreateNote", new QuickNotes.Models.Note())
This is because the partial view is expecting a Note but is getting passed the model of the parent view which is the IEnumerable
CSS:
.reverse {
transform: rotate(180deg);
}
.rotate {
animation-duration: .5s;
animation-iteration-count: 1;
animation-name: yoyo;
animation-timing-function: linear;
}
@keyframes yoyo {
from { transform: rotate( 0deg); }
to { transform: rotate(360deg); }
}
Javascript:
$(buttonElement).click(function () {
$(".arrow").toggleClass("reverse")
return false
})
$(buttonElement).hover(function () {
$(".arrow").addClass("rotate")
}, function() {
$(".arrow").removeClass("rotate")
})
PS: I've found this somewhere else but don't remember the source
You need to create new rails application first. Run
rails new mebay
cd mebay
bundle install
rails generate model ...
And try to find Rails 3 tutorial, there are a lot of changes since 2.1 Guides (http://guides.rubyonrails.org/getting_started.html) are good start point.
I am using git+vscode+windows+vue, and after read the eslint document: https://eslint.org/docs/rules/linebreak-style
Finally fix it by:
add *.js text eol=lf
to .gitattributes
then run vue-cli-service lint --fix
Django is designed to be easely used to deliver web pages. If you are not confortable with this perhaps you should use another solution.
I'm writting the root or common operations on the model (to have the same interface) and the others on the controller of the model. If I need an operation from other model I import its controller.
This approach it's enough for me and the complexity of my applications.
Hedde's response is an example that shows the flexibility of django and python itself.
Very interesting question anyway!
When you provide a path, it can be absolute/rooted, or relative. If you provide a relative path, it will be resolved by taking the working directory of the running process.
Example:
string text = File.ReadAllText("Some\\Path.txt"); // relative path
The above code has the same effect as the following:
string text = File.ReadAllText(
Path.Combine(Environment.CurrentDirectory, "Some\\Path.txt"));
If you have files that are always going to be in the same location relative to your application, just include a relative path to them, and they should resolve correctly on different computers.
DBCC OPENTRAN helps to identify active transactions that may be preventing log truncation. DBCC OPENTRAN displays information about the oldest active transaction and the oldest distributed and nondistributed replicated transactions, if any, within the transaction log of the specified database. Results are displayed only if there is an active transaction that exists in the log or if the database contains replication information.
An informational message is displayed if there are no active transactions in the log.
$product->get_categories()
is deprecated since version 3.0! Use wc_get_product_category_list
instead.
https://docs.woocommerce.com/wc-apidocs/function-wc_get_product_category_list.html
Please try to add this into inside the table tag.
border="0" cellspacing="0" cellpadding="0"
<table border="0" cellspacing="0" cellpadding="0">
...
</table>
I know it's an old question but today got the same error and non of the above solutions worked.
Have fixed it however by setting option:
Project -> Architecture -> Build Active Architecture Only
to Yes
and project compiles and builds properly
jsonVariable = {}
for(i=1; i<3; i++) {
var jsonKey = i+'name';
jsonVariable[jsonKey] = 'name1'
}
this will be similar to
jsonVariable = {
1name : 'name1'
2name : 'name1'
}
import React, { Component, PropTypes } from 'react';
This may also work!
The error seems to be thrown when you try and load they keystore from "C:/jakarta-tomcat/webapps/PlanB/Certs/my_pkcs12.p12" here:
ks.load( new FileInputStream(_privateKeyPath), _keyPass.toCharArray() );
Have you tried replaceing "/" with "\\" in your file path? If that doesn't help it probably has to do with Java's Unlimited Strength Jurisdiction Policy Files. You could check this by writing a little program that does AES encryption. Try encrypting with a 128 bit key, then if that works, try with a 256 bit key and see if it fails.
Code that does AES encyrption:
import java.io.UnsupportedEncodingException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class Test
{
final String ALGORITHM = "AES"; //symmetric algorithm for data encryption
final String PADDING_MODE = "/CBC/PKCS5Padding"; //Padding for symmetric algorithm
final String CHAR_ENCODING = "UTF-8"; //character encoding
//final String CRYPTO_PROVIDER = "SunMSCAPI"; //provider for the crypto
int AES_KEY_SIZE = 256; //symmetric key size (128, 192, 256) if using 256 you must have the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files installed
private String doCrypto(String plainText) throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException, UnsupportedEncodingException
{
byte[] dataToEncrypt = plainText.getBytes(CHAR_ENCODING);
//get the symmetric key generator
KeyGenerator keyGen = KeyGenerator.getInstance(ALGORITHM);
keyGen.init(AES_KEY_SIZE); //set the key size
//generate the key
SecretKey skey = keyGen.generateKey();
//convert to binary
byte[] rawAesKey = skey.getEncoded();
//initialize the secret key with the appropriate algorithm
SecretKeySpec skeySpec = new SecretKeySpec(rawAesKey, ALGORITHM);
//get an instance of the symmetric cipher
Cipher aesCipher = Cipher.getInstance(ALGORITHM + PADDING_MODE);
//set it to encrypt mode, with the generated key
aesCipher.init(Cipher.ENCRYPT_MODE, skeySpec);
//get the initialization vector being used (to be returned)
byte[] aesIV = aesCipher.getIV();
//encrypt the data
byte[] encryptedData = aesCipher.doFinal(dataToEncrypt);
//initialize the secret key with the appropriate algorithm
SecretKeySpec skeySpecDec = new SecretKeySpec(rawAesKey, ALGORITHM);
//get an instance of the symmetric cipher
Cipher aesCipherDec = Cipher.getInstance(ALGORITHM +PADDING_MODE);
//set it to decrypt mode with the AES key, and IV
aesCipherDec.init(Cipher.DECRYPT_MODE, skeySpecDec, new IvParameterSpec(aesIV));
//decrypt and return the data
byte[] decryptedData = aesCipherDec.doFinal(encryptedData);
return new String(decryptedData, CHAR_ENCODING);
}
public static void main(String[] args)
{
String text = "Lets encrypt me";
Test test = new Test();
try {
System.out.println(test.doCrypto(text));
} catch (InvalidKeyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchPaddingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (BadPaddingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvalidAlgorithmParameterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Does this code work for you?
You might also want to try specifying your bouncy castle provider in this line:
Cipher.getInstance(ALGORITHM +PADDING_MODE, "YOUR PROVIDER");
And see if it could be an error associated with bouncy castle.
a1 = c(1, 2, 3, 4, 5)
a2 = c(6, 7, 8, 9, 10)
a3 = c(11, 12, 13, 14, 15)
aframe = data.frame(a1, a2, a3)
avector <- as.vector(aframe['a2'])
avector<-unlist(avector)
#this will return a vector of type "integer"
You are seeing a Git safety feature. Git refuses to update the remote branch with your branch, because your branch's head commit is not a direct descendent of the current head commit of the branch that you are pushing to.
If this were not the case, then two people pushing to the same repository at about the same time would not know that there was a new commit coming in at the same time and whoever pushed last would lose the work of the previous pusher without either of them realising this.
If you know that you are the only person pushing and you want to push an amended commit or push a commit that winds back the branch, you can 'force' Git to update the remote branch by using the -f
switch.
git push -f origin master
Even this may not work as Git allows remote repositories to refuse non-fastforward pushes at the far end by using the configuration variable receive.denynonfastforwards
. If this is the case the rejection reason will look like this (note the 'remote rejected' part):
! [remote rejected] master -> master (non-fast forward)
To get around this, you either need to change the remote repository's configuration or as a dirty hack you can delete and recreate the branch thus:
git push origin :master
git push origin master
In general the last parameter to git push
uses the format <local_ref>:<remote_ref>
, where local_ref
is the name of the branch on the local repository and remote_ref
is the name of the branch on the remote repository. This command pair uses two shorthands. :master
has a null local_ref which means push a null branch to the remote side master
, i.e. delete the remote branch. A branch name with no :
means push the local branch with the given name to the remote branch with the same name. master
in this situation is short for master:master
.
You partial looks much like an editor template so you could include it as such (assuming of course that your partial is placed in the ~/views/controllername/EditorTemplates
subfolder):
@Html.EditorFor(model => model.SomePropertyOfTypeLocaleBaseModel)
Or if this is not the case simply:
@Html.Partial("nameOfPartial", Model)
This just happened to me.
Solution: Pull down my own branch so I get that extra commit. Then push it back to my remote branch.
literally what I did on my branch was:
git pull
git push
// 24-hour time to 12-hour time
$time_in_12_hour_format = date("g:i a", strtotime("13:30"));
// 12-hour time to 24-hour time
$time_in_24_hour_format = date("H:i", strtotime("1:30 PM"));
---One to Many--- A Parent can have two or more children.
---Many to one--- Those 3 children can have a single Parent
Both are similar. This can be used according to the need. If you want to find children for a particular parent, then you can go with One-To-Many. Or else, want to find parents for twins, you may go with Many-To-One.
I think this should require nothing more then just grouping by all columns except the id and choosing one row from every group - for simplicity just the first row, but this does not actually matter besides you have additional constraints on the id.
Or the other way around to get rid of the rows ... just delete all rows accept a single one from all groups.
A HANDLE in Win32 programming is a token that represents a resource that is managed by the Windows kernel. A handle can be to a window, a file, etc.
Handles are simply a way of identifying a particulate resource that you want to work with using the Win32 APIs.
So for instance, if you want to create a Window, and show it on the screen you could do the following:
// Create the window
HWND hwnd = CreateWindow(...);
if (!hwnd)
return; // hwnd not created
// Show the window.
ShowWindow(hwnd, SW_SHOW);
In the above example HWND means "a handle to a window".
If you are used to an object oriented language you can think of a HANDLE as an instance of a class with no methods who's state is only modifiable by other functions. In this case the ShowWindow function modifies the state of the Window HANDLE.
See Handles and Data Types for more information.
I think what you want to do is actually pass by reference (pointer) to the function-- create a new environment (which are passed by reference to functions) with the list added to it:
listptr=new.env(parent=globalenv())
listptr$list=mylist
#Then the function is modified as:
lPtrAppend <- function(lstptr, obj) {
lstptr$list[[length(lstptr$list)+1]] <- obj
}
Now you are only modifying the existing list (not creating a new one)
Maybe it's too late to post a reply, but as this page is the first Google's result, it may still be helpful.
If you want to free some space in your git repo, but do not want to rebuild all your commits (rebase or graft), and still be able to push/pull/merge from people who has the full repo, you may use the git clone shallow clone (--depth parameter).
; Clone the original repo into limitedRepo
git clone file:///path_to/originalRepo limitedRepo --depth=10
; Remove the original repo, to free up some space
rm -rf originalRepo
cd limitedRepo
git remote rm origin
You may be able to shallow your existing repo, by following these steps:
; Shallow to last 5 commits
git rev-parse HEAD~5 > .git/shallow
; Manually remove all other branches, tags and remotes that refers to old commits
; Prune unreachable objects
git fsck --unreachable ; Will show you the list of what will be deleted
git gc --prune=now ; Will actually delete your data
How to remove all git local tags?
Ps: Older versions of git didn't support clone/push/pull from/to shallow repos.
You should use partial views. I use the following approach:
Use a view model so you're not passing your domain models to your views:
public class EditPersonViewModel
{
public int Id { get; set; } // this is only used to retrieve record from Db
public string Name { get; set; }
public string Age { get; set; }
}
In your PersonController:
[HttpGet] // this action result returns the partial containing the modal
public ActionResult EditPerson(int id)
{
var viewModel = new EditPersonViewModel();
viewModel.Id = id;
return PartialView("_EditPersonPartial", viewModel);
}
[HttpPost] // this action takes the viewModel from the modal
public ActionResult EditPerson(EditPersonViewModel viewModel)
{
if (ModelState.IsValid)
{
var toUpdate = personRepo.Find(viewModel.Id);
toUpdate.Name = viewModel.Name;
toUpdate.Age = viewModel.Age;
personRepo.InsertOrUpdate(toUpdate);
personRepo.Save();
return View("Index");
}
}
Next create a partial view called _EditPersonPartial
. This contains the modal header, body and footer. It also contains the Ajax form. It's strongly typed and takes in our view model.
@model Namespace.ViewModels.EditPersonViewModel
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h3 id="myModalLabel">Edit group member</h3>
</div>
<div>
@using (Ajax.BeginForm("EditPerson", "Person", FormMethod.Post,
new AjaxOptions
{
InsertionMode = InsertionMode.Replace,
HttpMethod = "POST",
UpdateTargetId = "list-of-people"
}))
{
@Html.ValidationSummary()
@Html.AntiForgeryToken()
<div class="modal-body">
@Html.Bootstrap().ControlGroup().TextBoxFor(x => x.Name)
@Html.Bootstrap().ControlGroup().TextBoxFor(x => x.Age)
</div>
<div class="modal-footer">
<button class="btn btn-inverse" type="submit">Save</button>
</div>
}
Now somewhere in your application, say another partial _peoplePartial.cshtml etc:
<div>
@foreach(var person in Model.People)
{
<button class="btn btn-primary edit-person" data-id="@person.PersonId">Edit</button>
}
</div>
// this is the modal definition
<div class="modal hide fade in" id="edit-person">
<div id="edit-person-container"></div>
</div>
<script type="text/javascript">
$(document).ready(function () {
$('.edit-person').click(function () {
var url = "/Person/EditPerson"; // the url to the controller
var id = $(this).attr('data-id'); // the id that's given to each button in the list
$.get(url + '/' + id, function (data) {
$('#edit-person-container').html(data);
$('#edit-person').modal('show');
});
});
});
</script>
The answer lies in which constructors the LinkedHashSet
uses to construct the base class:
public LinkedHashSet(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor, true); // <-- boolean dummy argument
}
...
public LinkedHashSet(int initialCapacity) {
super(initialCapacity, .75f, true); // <-- boolean dummy argument
}
...
public LinkedHashSet() {
super(16, .75f, true); // <-- boolean dummy argument
}
...
public LinkedHashSet(Collection<? extends E> c) {
super(Math.max(2*c.size(), 11), .75f, true); // <-- boolean dummy argument
addAll(c);
}
And (one example of) a HashSet
constructor that takes a boolean argument is described, and looks like this:
/**
* Constructs a new, empty linked hash set. (This package private
* constructor is only used by LinkedHashSet.) The backing
* HashMap instance is a LinkedHashMap with the specified initial
* capacity and the specified load factor.
*
* @param initialCapacity the initial capacity of the hash map
* @param loadFactor the load factor of the hash map
* @param dummy ignored (distinguishes this
* constructor from other int, float constructor.)
* @throws IllegalArgumentException if the initial capacity is less
* than zero, or if the load factor is nonpositive
*/
HashSet(int initialCapacity, float loadFactor, boolean dummy) {
map = new LinkedHashMap<E,Object>(initialCapacity, loadFactor);
}
In openSUSE 19.2 installing the patterns-hpc-development_node
package fixed this issue for me.
It's one of the common mistake everybody make while working with jQuery, Basically $ is an alias of jQuery() so when you try to call/access it before declaring the function will endup throwing this error.
Reasons might be
1) Path to jQuery library you included is not correct.
2) Added library after the script were you see that error
To solve this
Load the jquery library beginning of all your javascript files/scripts.
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
This also works:
^([1-9]|[0-1][0-2])$
[1-9]
matches single digits between 1 and 9
[0-1][0-2]
matches double digits between 10 and 12
There are some good examples here
There's very powerful new package from genius data scientists at Win-Vector (folks that made vtreat
, seplyr
and replyr
) called cdata
. It implements "coordinated data" principles described in this document and also in this blog post. The idea is that regardless how you organize your data, it should be possible to identify individual data points using a system of "data coordinates". Here's a excerpt from the recent blog post by John Mount:
The whole system is based on two primitives or operators cdata::moveValuesToRowsD() and cdata::moveValuesToColumnsD(). These operators have pivot, un-pivot, one-hot encode, transpose, moving multiple rows and columns, and many other transforms as simple special cases.
It is easy to write many different operations in terms of the cdata primitives. These operators can work-in memory or at big data scale (with databases and Apache Spark; for big data use the cdata::moveValuesToRowsN() and cdata::moveValuesToColumnsN() variants). The transforms are controlled by a control table that itself is a diagram of (or picture of) the transform.
We will first build the control table (see blog post for details) and then perform the move of data from rows to columns.
library(cdata)
# first build the control table
pivotControlTable <- buildPivotControlTableD(table = dat1, # reference to dataset
columnToTakeKeysFrom = 'numbers', # this will become column headers
columnToTakeValuesFrom = 'value', # this contains data
sep="_") # optional for making column names
# perform the move of data to columns
dat_wide <- moveValuesToColumnsD(tallTable = dat1, # reference to dataset
keyColumns = c('name'), # this(these) column(s) should stay untouched
controlTable = pivotControlTable# control table above
)
dat_wide
#> name numbers_1 numbers_2 numbers_3 numbers_4
#> 1 firstName 0.3407997 -0.7033403 -0.3795377 -0.7460474
#> 2 secondName -0.8981073 -0.3347941 -0.5013782 -0.1745357
You will have to open the file in one way or another if you want to access the data within it. Obviously, one way is to open it in your Excel application instance, e.g.:-
(untested code)
Dim wbk As Workbook
Set wbk = Workbooks.Open("C:\myworkbook.xls")
' now you can manipulate the data in the workbook anyway you want, e.g. '
Dim x As Variant
x = wbk.Worksheets("Sheet1").Range("A6").Value
Call wbk.Worksheets("Sheet2").Range("A1:G100").Copy
Call ThisWorbook.Worksheets("Target").Range("A1").PasteSpecial(xlPasteValues)
Application.CutCopyMode = False
' etc '
Call wbk.Close(False)
Another way to do it would be to use the Excel ADODB provider to open a connection to the file and then use SQL to select data from the sheet you want, but since you are anyway working from within Excel I don't believe there is any reason to do this rather than just open the workbook. Note that there are optional parameters for the Workbooks.Open() method to open the workbook as read-only, etc.
import sys, os
try:
raise NotImplementedError("No error")
except Exception as e:
exc_type, exc_obj, exc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
The error log is straightforward. As it suggested,You need to add 198.211.99.20 to your ALLOWED_HOSTS
setting.
In your project settings.py file,set ALLOWED_HOSTS
like this :
ALLOWED_HOSTS = ['198.211.99.20', 'localhost', '127.0.0.1']
For further reading read from here.
Another reason why someone might get this error is if the file Global.asax is not in the root folder anymore.
<?php
// Randomize sleeping time
usleep(mt_rand(100, 10000));
// As of PHP 5.4.0, REQUEST_TIME_FLOAT is available in the $_SERVER superglobal array.
// It contains the timestamp of the start of the request with microsecond precision.
$time = microtime(true) - $_SERVER["REQUEST_TIME_FLOAT"];
echo "Did nothing in $time seconds\n";
?>
here's for SQL server, Oracle, PostgreSQL
which support window functions.
SELECT ROW_NUMBER() OVER (ORDER BY first_name, last_name) Sequence_no,
first_name,
last_name
FROM tableName
Using the standard datetime format "s" will also ensure internationalization compatibility (MM/dd versus dd/MM):
myDateTime.ToString("s");
=> 2013-12-31T00:00:00
Complete Options: (code: sample result)
d: 6/15/2008
D: Sunday, June 15, 2008
f: Sunday, June 15, 2008 9:15 PM
F: Sunday, June 15, 2008 9:15:07 PM
g: 6/15/2008 9:15 PM
G: 6/15/2008 9:15:07 PM
m: June 15
o: 2008-06-15T21:15:07.0000000
R: Sun, 15 Jun 2008 21:15:07 GMT
s: 2008-06-15T21:15:07
t: 9:15 PM
T: 9:15:07 PM
u: 2008-06-15 21:15:07Z
U: Monday, June 16, 2008 4:15:07 AM
y: June, 2008
'h:mm:ss.ff t': 9:15:07.00 P
'd MMM yyyy': 15 Jun 2008
'HH:mm:ss.f': 21:15:07.0
'dd MMM HH:mm:ss': 15 Jun 21:15:07
'\Mon\t\h\: M': Month: 6
'HH:mm:ss.ffffzzz': 21:15:07.0000-07:00
Supported in .NET Framework: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
Reference: DateTime.ToString
Method
You use the ajaxStop to execute code when the ajax are completed:
$(document).ajaxStop(function(){
setTimeout("window.location = 'otherpage.html'",100);
});
it is safer to use the method compareTo()
BigDecimal a = new BigDecimal(10);
BigDecimal b = BigDecimal.ZERO;
System.out.println(" result ==> " + a.compareTo(b));
console print
result ==> 1
compareTo()
returns
- 1 if a is greater than b
- -1 if b is less than b
- 0 if a is equal to b
now for your problem you can use
if (value.compareTo(BigDecimal.ZERO) > 0)
or
if (value.compareTo(new BigDecimal(0)) > 0)
I hope it helped you.
This code may be helpful for you.
from tkinter import filedialog
from tkinter import *
root = Tk()
root.withdraw()
folder_selected = filedialog.askdirectory()
For Mac OS X
1) Update to Python 3.6.5 using the native app installer downloaded from the official Python language website https://www.python.org/downloads/
I've found that the installer is taking care of updating the links and symlinks for the new Python a lot better than homebrew.
2) Install a new certificate using "./Install Certificates.command" which is in the refreshed Python 3.6 directory
> cd "/Applications/Python 3.6/"
> sudo "./Install Certificates.command"
If you're doing this to several fields, or doing it quite often, then perhaps a plugin is the answer.
Here's the beginnings of a jQuery plugin that formats the value of a field to two decimal places.
It is triggered by the onchange event of the field. You may want something different.
<script type="text/javascript">
// mini jQuery plugin that formats to two decimal places
(function($) {
$.fn.currencyFormat = function() {
this.each( function( i ) {
$(this).change( function( e ){
if( isNaN( parseFloat( this.value ) ) ) return;
this.value = parseFloat(this.value).toFixed(2);
});
});
return this; //for chaining
}
})( jQuery );
// apply the currencyFormat behaviour to elements with 'currency' as their class
$( function() {
$('.currency').currencyFormat();
});
</script>
<input type="text" name="one" class="currency"><br>
<input type="text" name="two" class="currency">
Location is a struct. If there aren't any convenience members, you'll need to reassign the entire Location:
this.balancePanel.Location = new Point(
this.optionsPanel.Location.X,
this.balancePanel.Location.Y);
Most structs are also immutable, but in the rare (and confusing) case that it is mutable, you can also copy-out, edit, copy-in;
var loc = this.balancePanel.Location;
loc.X = this.optionsPanel.Location.X;
this.balancePanel.Location = loc;
Although I don't recommend the above, since structs should ideally be immutable.
If you need all the foreign keys of the user then use the following script
SELECT a.constraint_name, a.table_name, a.column_name, c.owner,
c_pk.table_name r_table_name, b.column_name r_column_name
FROM user_cons_columns a
JOIN user_constraints c ON a.owner = c.owner
AND a.constraint_name = c.constraint_name
JOIN user_constraints c_pk ON c.r_owner = c_pk.owner
AND c.r_constraint_name = c_pk.constraint_name
JOIN user_cons_columns b ON C_PK.owner = b.owner
AND C_PK.CONSTRAINT_NAME = b.constraint_name AND b.POSITION = a.POSITION
WHERE c.constraint_type = 'R'
based on Vincent Malgrat code
This works:
from datetime import date
today =date.today()
Output in this time: 2020-08-29
Additional:
this_year = date.today().year
this_month = date.today().month
this_day = date.today().day
print(today)
print(this_year)
print(this_month)
print(this_day)
This approach also works with same hierarchy of Controller files:
$printReport = new PrintReportController;
$prinReport->getPrintReport();
$zip = new ZipArchive;
$tmp_file = 'assets/myzip.zip';
if ($zip->open($tmp_file, ZipArchive::CREATE)) {
$zip->addFile('folder/bootstrap.js', 'bootstrap.js');
$zip->addFile('folder/bootstrap.min.js', 'bootstrap.min.js');
$zip->close();
echo 'Archive created!';
header('Content-disposition: attachment; filename=files.zip');
header('Content-type: application/zip');
readfile($tmp_file);
} else {
echo 'Failed!';
}
Three years past since this question was answered but I will provide my answer anyway :)
Actually, accepted answer is not fully correct. Jakub's test uses hardcoded string which allows JS engine to optimize code execution (Google's V8 is really good in this stuff!). But as soon as you use completely random strings (here is JSPerf) then string concatenation will be on a second place.
You can specify the color
option as a list directly to the plot
function.
from matplotlib import pyplot as plt
from itertools import cycle, islice
import pandas, numpy as np # I find np.random.randint to be better
# Make the data
x = [{i:np.random.randint(1,5)} for i in range(10)]
df = pandas.DataFrame(x)
# Make a list by cycling through the colors you care about
# to match the length of your data.
my_colors = list(islice(cycle(['b', 'r', 'g', 'y', 'k']), None, len(df)))
# Specify this list of colors as the `color` option to `plot`.
df.plot(kind='bar', stacked=True, color=my_colors)
To define your own custom list, you can do a few of the following, or just look up the Matplotlib techniques for defining a color item by its RGB values, etc. You can get as complicated as you want with this.
my_colors = ['g', 'b']*5 # <-- this concatenates the list to itself 5 times.
my_colors = [(0.5,0.4,0.5), (0.75, 0.75, 0.25)]*5 # <-- make two custom RGBs and repeat/alternate them over all the bar elements.
my_colors = [(x/10.0, x/20.0, 0.75) for x in range(len(df))] # <-- Quick gradient example along the Red/Green dimensions.
The last example yields the follow simple gradient of colors for me:
I didn't play with it long enough to figure out how to force the legend to pick up the defined colors, but I'm sure you can do it.
In general, though, a big piece of advice is to just use the functions from Matplotlib directly. Calling them from Pandas is OK, but I find you get better options and performance calling them straight from Matplotlib.
According to the create table statement, the default charset of the table is already utf8mb4. It seems that you have a wrong connection charset.
In Java, set the datasource url like this: jdbc:mysql://127.0.0.1:3306/testdb?useUnicode=true&characterEncoding=utf-8.
"?useUnicode=true&characterEncoding=utf-8" is necessary for using utf8mb4.
It works for my application.
Jquery has trim() function which basically turns something like this " FOo Bar " into "FOo Bar".
var string = " My String with Multiple lines ";
string.trim(); // output "My String with Multiple lines"
It is much more usefull because it is automatically removes empty spaces at the beginning and at the end of string as well. No regex needed.
Using emailBtn.titleEdgeInsets
is better than contentEdgeInsets
, in case you don't want to change the whole content position inside the button.
Most answers here all have the weakness of using key- events.
Many of the answers would limit your ability to do text selection with keyboard macros, copy+paste and more unwanted behavior, others seem to depend on specific jQuery plugins, which is killing flies with machineguns.
This simple solution seems to work best for me cross platform, regardless of input mechanism (keystroke, copy+paste, rightclick copy+paste, speech-to-text etc.). All text selection keyboard macros would still work, and it would even limit ones ability to set a non-numeric value by script.
function forceNumeric(){
var $input = $(this);
$input.val($input.val().replace(/[^\d]+/g,''));
}
$('body').on('propertychange input', 'input[type="number"]', forceNumeric);
This took me forever to find something that works on my mac. Here's what worked for me:
brew install xmlformat
cat unformatted.html | xmlformat
As sdleihssirhc says below, if the element's display
is being inherited or being specified by a CSS rule, you'll need to get its computed style:
return window.getComputedStyle(element, null).display;
Elements have a style
property that will tell you what you want, if the style was declared inline or with JavaScript:
console.log(document.getElementById('someIDThatExists').style.display);
will give you a string value.
Reading the file is easier done with the static File
class:
// First read all the text into a single string.
string text = File.ReadAllText(FileName);
// Then split the lines at "\r\n".
string[] stringSeparators = new string[] { "\r\n" };
string[] lines = text.Split(stringSeparators, StringSplitOptions.None);
// Finally replace lonely '\r' and '\n' by whitespaces in each line.
foreach (string s in lines) {
Console.WriteLine(s.Replace('\r', ' ').Replace('\n', ' '));
}
Note: The text might also contain vertical tabulators \v
. Those are used by Microsoft Word as manual linebreaks.
In order to catch any possible kind of breaks, you could use regex for the replacement
Console.WriteLine(Regex.Replace(s, @"[\f\n\r\t\v]", " "));
nginx
, like all well-behaved programs, can be configured not to self-daemonize.
Use the daemon off
configuration directive described in http://wiki.nginx.org/CoreModule.
Use border-collapse:collapse
on table and border-bottom: 1pt solid black;
on the tr
An adaptation of unutbu's answer that I found useful in my own code:
example_dict.setdefaut('key1', {}).get('key2')
It generates a dictionary entry for key1 if it does not have that key already so that you avoid the KeyError. If you want to end up a nested dictionary that includes that key pairing anyway like I did, this seems like the easiest solution.
In Windows 7
mysqld.exe --install
That's all
In the google io session about NFC, qa section. There was such a question:
card emulation? No API support for card emulation No consistent user experience when doing card emulation and no compelling story
if you want to read the file into a table at one time you should use BULK INSERT. ON the other hand if you preffer to parse the file line by line to make your own checks, you should take a look at this web: https://www.simple-talk.com/sql/t-sql-programming/reading-and-writing-files-in-sql-server-using-t-sql/ It is possible that you need to activate your xp_cmdshell or other OLE Automation features. Simple Google it and the script will appear. Hope to be useful.
function displayArrayValue($array,$key) {
if (array_key_exists($key,$array)) echo "$key is at ".$array[$key];
}
displayArrayValue($page, "Service");
You can do something like this:
public int[] convertDigitsToArray(int n) {
int [] temp = new int[String.valueOf(n).length()]; // Calculate the length of digits
int i = String.valueOf(n).length()-1 ; // Initialize the value to the last index
do {
temp[i] = n % 10;
n = n / 10;
i--;
} while(n>0);
return temp;
}
This will also maintain the order.
Here is the example works fine in oracle
select to_char(columnname, 'DD/MON/yyyy'), count(*) from table_name group by to_char(createddate, 'DD/MON/yyyy');
Are you sure that its not one query per line? Your text editor may be wrapping lines, but in reality each query may be on a single line.
At any rate, olle's method seems best. If you have reasons to run queries one at time, you should be able to read in your file line by line, then use the semicolon at the end of each query to delimit. You're much better off reading in a file line by line than trying to split an enormous string, as it will be much kinder to your server's memory. Example:
$query = '';
$handle = @fopen("/sqlfile.sql", "r");
if ($handle) {
while (!feof($handle)) {
$query.= fgets($handle, 4096);
if (substr(rtrim($query), -1) === ';') {
// ...run your query, then unset the string
$query = '';
}
}
fclose($handle);
}
Obviously, you'll need to consider transactions and the rest if you're running a whole lot of queries in a batch, but it's probably not a big deal for a new-install script.
if you have multiple sets of numbers then this is another option
>>> import re
>>> print(re.findall('\d+', 'xyz123abc456def789'))
['123', '456', '789']
its no good for floating point number strings though.
You can simply use the WebDriver
object, and access to the page source code via its @property
field page_source
...
Try this code snippet :-)
from selenium import webdriver
driver = webdriver.Firefox('path/to/executable')
driver.get('https://some-domain.com')
source = driver.page_source
if 'stuff' in source:
print('found...')
else:
print('not in source...')
This is some simple code for a timer:
Timer timer = new Timer();
TimerTask t = new TimerTask() {
@Override
public void run() {
System.out.println("1");
}
};
timer.scheduleAtFixedRate(t,1000,1000);
In terms of bytecode, in
saves a LOAD_ATTR
and replaces a CALL_FUNCTION
with a COMPARE_OP
.
>>> dis.dis(indict)
2 0 LOAD_GLOBAL 0 (name)
3 LOAD_GLOBAL 1 (d)
6 COMPARE_OP 6 (in)
9 POP_TOP
>>> dis.dis(haskey)
2 0 LOAD_GLOBAL 0 (d)
3 LOAD_ATTR 1 (haskey)
6 LOAD_GLOBAL 2 (name)
9 CALL_FUNCTION 1
12 POP_TOP
My feelings are that in
is much more readable and is to be preferred in every case that I can think of.
In terms of performance, the timing reflects the opcode
$ python -mtimeit -s'd = dict((i, i) for i in range(10000))' "'foo' in d"
10000000 loops, best of 3: 0.11 usec per loop
$ python -mtimeit -s'd = dict((i, i) for i in range(10000))' "d.has_key('foo')"
1000000 loops, best of 3: 0.205 usec per loop
in
is almost twice as fast.
Use this:
[self score]; you don't need @sel for calling directly
time1
is the key of the most outer dictionary, eg, feb2012
. So then you're trying to index the string, but you can only do this with integers. I think what you wanted was:
for info in courses[time1][course]:
As you're going through each dictionary, you must add another nest.
Yes, though you have to turn on TLS 1.2 manually at System.Net.ServicePointManager.SecurityProtocol
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls; // comparable to modern browsers
var response = WebRequest.Create("https://www.howsmyssl.com/").GetResponse();
var body = new StreamReader(response.GetResponseStream()).ReadToEnd();
Your client is using TLS 1.2, the most modern version of the encryption protocol
Out the box, WebRequest will use TLS 1.0 or SSL 3.
Your client is using TLS 1.0, which is very old, possibly susceptible to the BEAST attack, and doesn't have the best cipher suites available on it. Additions like AES-GCM, and SHA256 to replace MD5-SHA-1 are unavailable to a TLS 1.0 client as well as many more modern cipher suites.
I like assylias' answer, however I would refactor it as follows:
Sub test()
Dim origNum As String
Dim creditOrDebit As String
origNum = "30062600006"
creditOrDebit = "D"
If creditOrDebit = "D" Then
If origNum = "006260006" Then
MsgBox "OK"
ElseIf origNum = "30062600006" Then
MsgBox "OK"
End If
End If
End Sub
This might save you some CPU cycles since if creditOrDebit
is <> "D"
there is no point in checking the value of origNum
.
I used the following procedure to test my theory that my procedure is faster:
Public Declare Function timeGetTime Lib "winmm.dll" () As Long
Sub DoTests2()
Dim startTime1 As Long
Dim endTime1 As Long
Dim startTime2 As Long
Dim endTime2 As Long
Dim i As Long
Dim msg As String
Const numberOfLoops As Long = 10000
Const origNum As String = "006260006"
Const creditOrDebit As String = "D"
startTime1 = timeGetTime
For i = 1 To numberOfLoops
If creditOrDebit = "D" Then
If origNum = "006260006" Then
' do something here
Debug.Print "OK"
ElseIf origNum = "30062600006" Then
' do something here
Debug.Print "OK"
End If
End If
Next i
endTime1 = timeGetTime
startTime2 = timeGetTime
For i = 1 To numberOfLoops
If (origNum = "006260006" Or origNum = "30062600006") And _
creditOrDebit = "D" Then
' do something here
Debug.Print "OK"
End If
Next i
endTime2 = timeGetTime
msg = "number of iterations: " & numberOfLoops & vbNewLine
msg = msg & "JP proc: " & Format$((endTime1 - startTime1), "#,###") & _
" ms" & vbNewLine
msg = msg & "assylias proc: " & Format$((endTime2 - startTime2), "#,###") & _
" ms"
MsgBox msg
End Sub
I must have a slow computer because 1,000,000 iterations took nowhere near ~200 ms as with assylias' test. I had to limit the iterations to 10,000 -- hey, I have other things to do :)
After running the above procedure 10 times, my procedure is faster only 20% of the time. However, when it is slower it is only superficially slower. As assylias pointed out, however, when creditOrDebit
is <>"D"
, my procedure is at least twice as fast. I was able to reasonably test it at 100 million iterations.
And that is why I refactored it - to short-circuit the logic so that origNum
doesn't need to be evaluated when creditOrDebit <> "D"
.
At this point, the rest depends on the OP's spreadsheet. If creditOrDebit
is likely to equal D, then use assylias' procedure, because it will usually run faster. But if creditOrDebit
has a wide range of possible values, and D
is not any more likely to be the target value, my procedure will leverage that to prevent needlessly evaluating the other variable.
Looking at the source code of Virtus, I'd maybe do something like this:
def to_boolean(s)
map = Hash[%w[true yes 1].product([true]) + %w[false no 0].product([false])]
map[s.to_s.downcase]
end
indexPathsForVisibleItems
might work for most situations, but sometimes it returns an array with more than one index path and it can be tricky figuring out the one you want. In those situations, you can do something like this:
CGRect visibleRect = (CGRect){.origin = self.collectionView.contentOffset, .size = self.collectionView.bounds.size};
CGPoint visiblePoint = CGPointMake(CGRectGetMidX(visibleRect), CGRectGetMidY(visibleRect));
NSIndexPath *visibleIndexPath = [self.collectionView indexPathForItemAtPoint:visiblePoint];
This works especially well when each item in your collection view takes up the whole screen.
Swift version
let visibleRect = CGRect(origin: collectionView.contentOffset, size: collectionView.bounds.size)
let visiblePoint = CGPoint(x: visibleRect.midX, y: visibleRect.midY)
let visibleIndexPath = collectionView.indexPathForItem(at: visiblePoint)
public boolean onKeyDown(int keycode, KeyEvent event) {
if (keycode == KeyEvent.KEYCODE_BACK) {
moveTaskToBack(true);
}
return super.onKeyDown(keycode, event);
}
My app closed with above code.
I solved it by interchanging the arguments, I was using
export default connect(mapDispatchToProps, mapStateToProps)(Checkbox)
which is wrong. The mapStateToProps
has to be the first argument:
export default connect(mapStateToProps, mapDispatchToProps)(Checkbox)
It sounds obvious now, but might help someone.
If you are calling a RESTful service from a Service Provider (e.g Facebook, Twitter), you can do it with any flavour of your choice:
If you don't want to use external libraries, you can use java.net.HttpURLConnection
or javax.net.ssl.HttpsURLConnection
(for SSL), but that is call encapsulated in a Factory type pattern in java.net.URLConnection
.
To receive the result, you will have to connection.getInputStream()
which returns you an InputStream
. You will then have to convert your input stream to string and parse the string into it's representative object (e.g. XML, JSON, etc).
Alternatively, Apache HttpClient (version 4 is the latest). It's more stable and robust than java's default URLConnection
and it supports most (if not all) HTTP protocol (as well as it can be set to Strict mode). Your response will still be in InputStream
and you can use it as mentioned above.
Documentation on HttpClient: http://hc.apache.org/httpcomponents-client-ga/tutorial/html/index.html
Verry Easy, change order of element:
Origin
<div style="">
My Text
<button type="button" style="float: right; margin:5px;">
My Button
</button>
</div>
Change to:
<div style="">
<button type="button" style="float: right; margin:5px;">
My Button
</button>
My Text
</div>
in Swift 3,4 you should use "Compare". for example:
DateArray.sort { (($0)?.compare($1))! == .orderedDescending }
Just use:
(DateTime.Now - myDate).TotalHours / 8766.0
The current date - myDate = TimeSpan
, get total hours and divide in the total hours per year and get exactly the age/months/days...
From this forum:
parseInt()
returns primitive integer type (int), wherebyvalueOf
returns java.lang.Integer, which is the object representative of the integer. There are circumstances where you might want an Integer object, instead of primitive type.Of course, another obvious difference is that intValue is an instance method whereby parseInt is a static method.
Here is an example:
Process.Start("CMD", "/C Pause")
/C Carries out the command specified by string and then terminates
/K Carries out the command specified by string but remains
And here is a extended function: (Notice the comment-lines using CMD commands.)
#Region " Run Process Function "
' [ Run Process Function ]
'
' // By Elektro H@cker
'
' Examples :
'
' MsgBox(Run_Process("Process.exe"))
' MsgBox(Run_Process("Process.exe", "Arguments"))
' MsgBox(Run_Process("CMD.exe", "/C Dir /B", True))
' MsgBox(Run_Process("CMD.exe", "/C @Echo OFF & For /L %X in (0,1,50000) Do (Echo %X)", False, False))
' MsgBox(Run_Process("CMD.exe", "/C Dir /B /S %SYSTEMDRIVE%\*", , False, 500))
' If Run_Process("CMD.exe", "/C Dir /B", True).Contains("File.txt") Then MsgBox("File found")
Private Function Run_Process(ByVal Process_Name As String, _
Optional Process_Arguments As String = Nothing, _
Optional Read_Output As Boolean = False, _
Optional Process_Hide As Boolean = False, _
Optional Process_TimeOut As Integer = 999999999)
' Returns True if "Read_Output" argument is False and Process was finished OK
' Returns False if ExitCode is not "0"
' Returns Nothing if process can't be found or can't be started
' Returns "ErrorOutput" or "StandardOutput" (In that priority) if Read_Output argument is set to True.
Try
Dim My_Process As New Process()
Dim My_Process_Info As New ProcessStartInfo()
My_Process_Info.FileName = Process_Name ' Process filename
My_Process_Info.Arguments = Process_Arguments ' Process arguments
My_Process_Info.CreateNoWindow = Process_Hide ' Show or hide the process Window
My_Process_Info.UseShellExecute = False ' Don't use system shell to execute the process
My_Process_Info.RedirectStandardOutput = Read_Output ' Redirect (1) Output
My_Process_Info.RedirectStandardError = Read_Output ' Redirect non (1) Output
My_Process.EnableRaisingEvents = True ' Raise events
My_Process.StartInfo = My_Process_Info
My_Process.Start() ' Run the process NOW
My_Process.WaitForExit(Process_TimeOut) ' Wait X ms to kill the process (Default value is 999999999 ms which is 277 Hours)
Dim ERRORLEVEL = My_Process.ExitCode ' Stores the ExitCode of the process
If Not ERRORLEVEL = 0 Then Return False ' Returns the Exitcode if is not 0
If Read_Output = True Then
Dim Process_ErrorOutput As String = My_Process.StandardOutput.ReadToEnd() ' Stores the Error Output (If any)
Dim Process_StandardOutput As String = My_Process.StandardOutput.ReadToEnd() ' Stores the Standard Output (If any)
' Return output by priority
If Process_ErrorOutput IsNot Nothing Then Return Process_ErrorOutput ' Returns the ErrorOutput (if any)
If Process_StandardOutput IsNot Nothing Then Return Process_StandardOutput ' Returns the StandardOutput (if any)
End If
Catch ex As Exception
'MsgBox(ex.Message)
Return Nothing ' Returns nothing if the process can't be found or started.
End Try
Return True ' Returns True if Read_Output argument is set to False and the process finished without errors.
End Function
#End Region
C++ is mostly a superset of C. You can continue doing what you were doing.
That said, in C++, what you ought to do is to define a proper Matrix class that manages its own memory. It could, for example be backed by an internal std::vector
, and you could override operator[]
or operator()
to index into the vector appropriately (for example, see: How do I create a subscript operator for a Matrix class? from the C++ FAQ).
To get you started:
class Matrix
{
public:
Matrix(size_t rows, size_t cols);
double& operator()(size_t i, size_t j);
double operator()(size_t i, size_t j) const;
private:
size_t mRows;
size_t mCols;
std::vector<double> mData;
};
Matrix::Matrix(size_t rows, size_t cols)
: mRows(rows),
mCols(cols),
mData(rows * cols)
{
}
double& Matrix::operator()(size_t i, size_t j)
{
return mData[i * mCols + j];
}
double Matrix::operator()(size_t i, size_t j) const
{
return mData[i * mCols + j];
}
(Note that the above doesn't do any bounds-checking, and I leave it as an exercise to template it so that it works for things other than double
.)
Okay so three big things I noticed
You need to include the header file in your class file
Never, EVER place a using directive inside of a header or class, rather do something like std::cout << "say stuff";
Structs are completely defined within a header, structs are essentially classes that default to public
Hope this helps!
To determine the class of an object simply call:
someObject.getClass()
You can abbreviate this to someObject.class
in most cases. However, if you use this on a Map
it will try to retrieve the value with key 'class'. Because of this, I always use getClass()
even though it's a little longer.
If you want to check if an object implements a particular interface or extends a particular class (e.g. Date) use:
(somObject instanceof Date)
or to check if the class of an object is exactly a particular class (not a subclass of it), use:
(somObject.getClass() == Date)
Another approach would be to leverage the INSERT ALL
syntax from oracle,
INSERT ALL
INTO table1(email, campaign_id) VALUES (email, campaign_id)
WITH source_data AS
(SELECT '[email protected]' email,100 campaign_id
FROM dual
UNION ALL
SELECT '[email protected]' email,200 campaign_id
FROM dual)
SELECT email
,campaign_id
FROM source_data src
WHERE NOT EXISTS (SELECT 1
FROM table1 dest
WHERE src.email = dest.email
AND src.campaign_id = dest.campaign_id);
INSERT ALL
also allow us to perform a conditional insert into multiple tables based on a sub query as source.
There are some really clean and nice examples are there to refer.
[Taken from http://javarevisited.blogspot.com/2011/05/top-10-tips-on-logging-in-java.html]
DEBUG is the lowest restricted java logging level and we should write everything we need to debug an application, this java logging mode should only be used on Development and Testing environment and must not be used in production environment.
INFO is more restricted than DEBUG java logging level and we should log messages which are informative purpose like Server has been started, Incoming messages, outgoing messages etc in INFO level logging in java.
WARN is more restricted than INFO java logging level and used to log warning sort of messages e.g. Connection lost between client and server. Database connection lost, Socket reaching to its limit. These messages and java logging level are almost important because you can setup alert on these logging messages in java and let your support team monitor health of your java application and react on this warning messages. In Summary WARN level is used to log warning message for logging in Java.
ERROR is the more restricted java logging level than WARN and used to log Errors and Exception, you can also setup alert on this java logging level and alert monitoring team to react on this messages. ERROR is serious for logging in Java and you should always print it.
FATAL java logging level designates very severe error events that will presumably lead the application to abort. After this mostly your application crashes and stopped.
OFF java logging level has the highest possible rank and is intended to turn off logging in Java.
You can also just return string if you know that's the only thing the method will ever return. For example:
public string MyActionName() {
return "Hi there!";
}
% mysql --user=root mysql
CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' WITH GRANT OPTION;
CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' WITH GRANT OPTION;
CREATE USER 'admin'@'localhost';
GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost';
CREATE USER 'dummy'@'localhost';
FLUSH PRIVILEGES;
I think you want an additional projection that maps each group to a sorted-version of the group:
.Select(group => group.OrderByDescending(student => student.Grade))
It also appears like you might want another flattening operation after that which will give you a sequence of students instead of a sequence of groups:
.SelectMany(group => group)
You can always collapse both into a single SelectMany
call that does the projection and flattening together.
EDIT:
As Jon Skeet points out, there are certain inefficiencies in the overall query; the information gained from sorting each group is not being used in the ordering of the groups themselves. By moving the sorting of each group to come before the ordering of the groups themselves, the Max
query can be dodged into a simpler First
query.
Starting with C#6 you can use null propagation: myList?.Any() == true
If you still find this too cloggy or prefer a good ol' extension method, I would recommend Matt Greer and Marc Gravell's answers, yet with a bit of extended functionality for completeness.
Their answers provide the same basic functionality, but each from another perspective. Matt's answer uses the string.IsNullOrEmpty
-mentality, whereas Marc's answer takes Linq's .Any()
road to get the job done.
I am personally inclined to use the .Any()
road, but would like to add the condition checking functionality from the method's other overload:
public static bool AnyNotNull<T>(this IEnumerable<T> source, Func<T, bool> predicate = null)
{
if (source == null) return false;
return predicate == null
? source.Any()
: source.Any(predicate);
}
So you can still do things like :
myList.AnyNotNull(item=>item.AnswerToLife == 42);
as you could with the regular .Any()
but with the added null check
Note that with the C#6 way: myList?.Any()
returns a bool?
rather than a bool
, which is the actual effect of propagating null
It seems that no one has mentioned the switch --stat
:
$ git diff --stat HEAD~5 HEAD
.../java/org/apache/calcite/rex/RexSimplify.java | 50 +++++++++++++++++-----
.../apache/calcite/sql/fun/SqlTrimFunction.java | 2 +-
.../apache/calcite/sql2rel/SqlToRelConverter.java | 16 +++++++
.../org/apache/calcite/util/SaffronProperties.java | 19 ++++----
.../org/apache/calcite/test/RexProgramTest.java | 24 +++++++++++
.../apache/calcite/test/SqlToRelConverterTest.java | 8 ++++
.../apache/calcite/test/SqlToRelConverterTest.xml | 15 +++++++
pom.xml | 2 +-
.../apache/calcite/adapter/spark/SparkRules.java | 7 +--
9 files changed, 117 insertions(+), 26 deletions(-)
There are also --numstat
$ git diff --numstat HEAD~5 HEAD
40 10 core/src/main/java/org/apache/calcite/rex/RexSimplify.java
1 1 core/src/main/java/org/apache/calcite/sql/fun/SqlTrimFunction.java
16 0 core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java
8 11 core/src/main/java/org/apache/calcite/util/SaffronProperties.java
24 0 core/src/test/java/org/apache/calcite/test/RexProgramTest.java
8 0 core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java
15 0 core/src/test/resources/org/apache/calcite/test/SqlToRelConverterTest.xml
1 1 pom.xml
4 3 spark/src/main/java/org/apache/calcite/adapter/spark/SparkRules.java
and --shortstat
$ git diff --shortstat HEAD~5 HEAD
9 files changed, 117 insertions(+), 26 deletions(-)
If your service is going to be part of you application then you are making it way more complex than it needs to be. Since you have a simple use case of getting some data from a RESTful Web Service, you should look into ResultReceiver and IntentService.
This Service + ResultReceiver pattern works by starting or binding to the service with startService() when you want to do some action. You can specify the operation to perform and pass in your ResultReceiver (the activity) through the extras in the Intent.
In the service you implement onHandleIntent to do the operation that is specified in the Intent. When the operation is completed you use the passed in ResultReceiver to send a message back to the Activity at which point onReceiveResult will be called.
So for example, you want to pull some data from your Web Service.
I know you mentioned you didn't want a code base but the open source Google I/O 2010 app uses a service in this way I am describing.
Updated to add sample code:
The activity.
public class HomeActivity extends Activity implements MyResultReceiver.Receiver {
public MyResultReceiver mReceiver;
public void onCreate(Bundle savedInstanceState) {
mReceiver = new MyResultReceiver(new Handler());
mReceiver.setReceiver(this);
...
final Intent intent = new Intent(Intent.ACTION_SYNC, null, this, QueryService.class);
intent.putExtra("receiver", mReceiver);
intent.putExtra("command", "query");
startService(intent);
}
public void onPause() {
mReceiver.setReceiver(null); // clear receiver so no leaks.
}
public void onReceiveResult(int resultCode, Bundle resultData) {
switch (resultCode) {
case RUNNING:
//show progress
break;
case FINISHED:
List results = resultData.getParcelableList("results");
// do something interesting
// hide progress
break;
case ERROR:
// handle the error;
break;
}
}
The Service:
public class QueryService extends IntentService {
protected void onHandleIntent(Intent intent) {
final ResultReceiver receiver = intent.getParcelableExtra("receiver");
String command = intent.getStringExtra("command");
Bundle b = new Bundle();
if(command.equals("query") {
receiver.send(STATUS_RUNNING, Bundle.EMPTY);
try {
// get some data or something
b.putParcelableArrayList("results", results);
receiver.send(STATUS_FINISHED, b)
} catch(Exception e) {
b.putString(Intent.EXTRA_TEXT, e.toString());
receiver.send(STATUS_ERROR, b);
}
}
}
}
ResultReceiver extension - edited about to implement MyResultReceiver.Receiver
public class MyResultReceiver implements ResultReceiver {
private Receiver mReceiver;
public MyResultReceiver(Handler handler) {
super(handler);
}
public void setReceiver(Receiver receiver) {
mReceiver = receiver;
}
public interface Receiver {
public void onReceiveResult(int resultCode, Bundle resultData);
}
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
if (mReceiver != null) {
mReceiver.onReceiveResult(resultCode, resultData);
}
}
}
I know this is an old question, but since php7.0 you can use the null coalescing operator (another resource).
It similar to the ternary operator, but will behave like isset on the lefthand operand instead of just using its boolean value.
$slide = $_GET["id"] ?? 'fallback';
So if $_GET["id"]
is set, it returns the value. If not, it returns the fallback. I found this very helpful for $_POST, $_GET, or any passed parameters, etc
$slide = $_GET["id"] ?? '';
if (trim($slide) == 'link1') ...
Use File.ReadAllText(path_to_file)
to read
When you are editing a table
Right Click -> Check Constraints -> Add -> Type something like Frequency IN ('Daily', 'Weekly', 'Monthly', 'Yearly')
in expression field and a good constraint name in (Name) field.
You are done.
I had a lot of these warnings and I always use FROM_HTML_MODE_LEGACY so I made a helper class called HtmlCompat containing the following:
@SuppressWarnings("deprecation")
public static Spanned fromHtml(String source) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
return Html.fromHtml(source, Html.FROM_HTML_MODE_LEGACY);
} else {
return Html.fromHtml(source);
}
}
Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).
You should always use the direct .attribute
form (but see the quirksmode link below) if you want programmatic access in JavaScript. It should handle the different types of attributes (think "onload") correctly.
Use getAttribute
/setAttribute
when you wish to deal with the DOM as it is (e.g. literal text only). Different browsers confuse the two. See Quirks modes: attribute (in)compatibility.
In my case, i was getting the error when i wanted to access a remote database. However, i solved it by starting SQL Server Browser service.
That's an expected behavior. You are not setting your checkbox selected or not. You are selecting one and View holder keeps it selected. You can add a boolean variable into your ObjectIncome object and keep your item's selection status.
You may look at my example. You can do something like that:
public class AdapterTrashIncome extends RecyclerView.Adapter<AdapterTrashIncome.ViewHolder> {
private ArrayList<ObjectIncome> myItems = new ArrayList<>();
public AdapterTrashIncome(ArrayList<ObjectIncome> getItems, Context context){
try {
mContext = context;
myItems = getItems;
}catch (Exception e){
Log.e(FILE_NAME, "51: " + e.toString());
e.printStackTrace();
}
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView tvContent;
public CheckBox cbSelect;
public ViewHolder(View v) {
super(v);
tvContent = (TextView) v.findViewById(R.id.tvContent);
cbSelect = (CheckBox) v.findViewById(R.id.cbSelect);
}
}
@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
final ObjectIncome objIncome = myItems.get(position);
String content = "<b>lalalla</b>";
holder.tvContent.setText(Html.fromHtml(content));
//in some cases, it will prevent unwanted situations
holder.cbSelect.setOnCheckedChangeListener(null);
//if true, your checkbox will be selected, else unselected
holder.cbSelect.setChecked(objIncome.isSelected());
holder.cbSelect.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
//set your object's last status
objIncome.setSelected(isChecked);
}
});
}
}
If possible, you may want to use IPython.
To get a list of all current user-defined variables, IPython provides a magic command named who
(magics must be prefixed with the modulo character unless the automagic
feature is enabled):
In [1]: foo = 'bar'
In [2]: %who
foo
You can use the whos
magic to get more detail:
In [3]: %whos
Variable Type Data/Info
----------------------------
foo str bar
There are a wealth of other magics available. IPython is basically the Python interpreter on steroids. One convenient magic is store
, which lets you save variables between sessions (using pickle
).
Note: I am not associated with IPython Dev - just a satisfied user.
Edit:
You can find all the magic commands in the IPython Documentation.
This article also has a helpful section on the use of magic commands in Jupyter Notebook
Line by line
int [] v = Stream.of(line.split(",\\s+"))
.mapToInt(Integer::parseInt)
.toArray();
Component:
import { Component, AfterViewInit, ViewChild } from @angular/core;
import { MatPaginator } from @angular/material;
export class ClassName implements AfterViewInit {
@ViewChild(MatPaginator) paginator: MatPaginator;
length = 1000;
pageSize = 10;
pageSizeOptions: number[] = [5, 10, 25, 100];
ngAfterViewInit() {
this.paginator.page.subscribe(
(event) => console.log(event)
);
}
HTML
<mat-paginator
[length]="length"
[pageSize]="pageSize"
[pageSizeOptions]="pageSizeOptions"
[showFirstLastButtons]="true">
</mat-paginator>
I once had this problem. I realized that while moving a class, I had overwritten the .mm
file with .h
file on the destination folder.
Fixing that issue fixed the error.
If the issue is font getting too big on widescreen desktop, I think the easiest CSS method would be something like this (assuming wrapper maximum 1000 pixels wide)
.specialText{
font-size: 2.4vw;
}
@media only screen and (min-width: 1000px) {
.specialText {
width: 24px;
}
}
So it is auto sized for any screen smaller than the maximum width of your container, and fixed size when the screen is wider (like virtually all desktop and laptops).
For put method we have:
const putMethod = {
method: 'PUT', // Method itself
headers: {
'Content-type': 'application/json; charset=UTF-8' // Indicates the content
},
body: JSON.stringify(someData) // We send data in JSON format
}
// make the HTTP put request using fetch api
fetch(url, putMethod)
.then(response => response.json())
.then(data => console.log(data)) // Manipulate the data retrieved back, if we want to do something with it
.catch(err => console.log(err)) // Do something with the error
Example for someData, we can have some input fields or whatever you need:
const someData = {
title: document.querySelector(TitleInput).value,
body: document.querySelector(BodyInput).value
}
And in our data base
will have this in json
format:
{
"posts": [
"id": 1,
"title": "Some Title", // what we typed in the title input field
"body": "Some Body", // what we typed in the body input field
]
}
For delete method we have:
const deleteMethod = {
method: 'DELETE', // Method itself
headers: {
'Content-type': 'application/json; charset=UTF-8' // Indicates the content
},
// No need to have body, because we don't send nothing to the server.
}
// Make the HTTP Delete call using fetch api
fetch(url, deleteMethod)
.then(response => response.json())
.then(data => console.log(data)) // Manipulate the data retrieved back, if we want to do something with it
.catch(err => console.log(err)) // Do something with the error
In the url we need to type the id of the of deletion: https://www.someapi/id
Your code looks fine, but there are a couple of things to be aware of:
Post::find($id);
acts upon the primary key, if you have set your primary key in your model to something other than id
by doing:
protected $primaryKey = 'slug';
then find
will search by that key instead.
Laravel also expects the id
to be an integer, if you are using something other than an integer (such as a string) you need to set the incrementing property on your model to false:
public $incrementing = false;
rt.jar
contains all of the compiled class files for the base Java Runtime environment. You should not be messing with this jar file.
For MacOS it is called classes.jar
and located under /System/Library/Frameworks/<java_version>/Classes
. Same not messing with it rule applies there as well :).
http://javahowto.blogspot.com/2006/05/what-does-rtjar-stand-for-in.html
Resolved similar problem in IBM RAD 7.5 by selecting:
File "C:\pythonwork\readthefile080410.py", line 120, in medications_minimum3
counter[row[11]]+=1
TypeError: unhashable type: 'list'
row[11]
is unhashable. It's a list. That is precisely (and only) what the error message means. You might not like it, but that is the error message.
Do this
counter[tuple(row[11])]+=1
Also, simplify.
d= [ row for row in c if counter[tuple(row[11])]>=sample_cutoff ]
@AVB's answer in ruby
det = Matrix[
[(x2 - x1), (x3 - x1)],
[(y2 - y1), (y3 - y1)]
].determinant
If det
is positive its above, if negative its below. If 0, its on the line.
The currently accepted answer has several issues. This post explains them, and offers a more robust solution. The solution suggested in that answer previously had:
var encodedStr = rawStr.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
return '&#' + i.charCodeAt(0) + ';';
});
The i
flag is redundant since no Unicode symbol in the range from U+00A0 to U+9999 has an uppercase/lowercase variant that is outside of that same range.
The m
flag is redundant because ^
or $
are not used in the regular expression.
Why the range U+00A0 to U+9999? It seems arbitrary.
Anyway, for a solution that correctly encodes all except safe & printable ASCII symbols in the input (including astral symbols!), and implements all named character references (not just those in HTML4), use the he library (disclaimer: This library is mine). From its README:
he (for “HTML entities”) is a robust HTML entity encoder/decoder written in JavaScript. It supports all standardized named character references as per HTML, handles ambiguous ampersands and other edge cases just like a browser would, has an extensive test suite, and — contrary to many other JavaScript solutions — he handles astral Unicode symbols just fine. An online demo is available.
Also see this relevant Stack Overflow answer.
A stack frame is a frame of data that gets pushed onto the stack. In the case of a call stack, a stack frame would represent a function call and its argument data.
If I remember correctly, the function return address is pushed onto the stack first, then the arguments and space for local variables. Together, they make the "frame," although this is likely architecture-dependent. The processor knows how many bytes are in each frame and moves the stack pointer accordingly as frames are pushed and popped off the stack.
There is a big difference between higher-level call stacks and the processor's call stack.
When we talk about a processor's call stack, we are talking about working with addresses and values at the byte/word level in assembly or machine code. There are "call stacks" when talking about higher-level languages, but they are a debugging/runtime tool managed by the runtime environment so that you can log what went wrong with your program (at a high level). At this level, things like line numbers and method and class names are often known. By the time the processor gets the code, it has absolutely no concept of these things.
There is a general problem: it's hard to mock time. Also, it's really bad practice to place long running/waiting code in a unit test.
So, for making a scheduling API testable, I used an interface with a real and a mock implementation like this:
public interface Clock {
public long getCurrentMillis();
public void sleep(long millis) throws InterruptedException;
}
public static class SystemClock implements Clock {
@Override
public long getCurrentMillis() {
return System.currentTimeMillis();
}
@Override
public void sleep(long millis) throws InterruptedException {
Thread.sleep(millis);
}
}
public static class MockClock implements Clock {
private final AtomicLong currentTime = new AtomicLong(0);
public MockClock() {
this(System.currentTimeMillis());
}
public MockClock(long currentTime) {
this.currentTime.set(currentTime);
}
@Override
public long getCurrentMillis() {
return currentTime.addAndGet(5);
}
@Override
public void sleep(long millis) {
currentTime.addAndGet(millis);
}
}
With this, you could imitate time in your test:
@Test
public void testExpiration() {
MockClock clock = new MockClock();
SomeCacheObject sco = new SomeCacheObject();
sco.putWithExpiration("foo", 1000);
clock.sleep(2000) // wait for 2 seconds
assertNull(sco.getIfNotExpired("foo"));
}
An advanced multi-threading mock for Clock
is much more complex, of course, but you can make it with ThreadLocal
references and a good time synchronization strategy, for example.
Just Small change to what Gary W mentioned, adding 'SELECT':
IF (SELECT CURSOR_STATUS('global','myCursor')) >= -1
BEGIN
DEALLOCATE myCursor
END
http://social.msdn.microsoft.com/Forums/en/sqlgetstarted/thread/eb268010-75fd-4c04-9fe8-0bc33ccf9357
You can use a std::map
to map the input to your enum
:
#include <iostream>
#include <string>
#include <map>
using namespace std;
enum level {easy, medium, hard};
map<string, level> levels;
void register_levels()
{
levels["easy"] = easy;
levels["medium"] = medium;
levels["hard"] = hard;
}
int main()
{
register_levels();
string input;
cin >> input;
switch( levels[input] )
{
case easy:
cout << "easy!"; break;
case medium:
cout << "medium!"; break;
case hard:
cout << "hard!"; break;
}
}
If you want a GUI to access SVN repos you can use http://tortoisesvn.tigris.org/ (and its Repobrwoser) If you want a browser based tool, to browse ANY SVN repo without installing SVn on your machine, i don't such a tool. I know only tools to install to your webserver and needed a installed SVN client on these server. To checkout or export a svn repo you need a svn client. (or you copy the files from the command line =) )
//program to find the duplicate elements in arraylist
import java.util.ArrayList;
import java.util.Scanner;
public class DistinctEle
{
public static void main(String args[])
{
System.out.println("Enter elements");
ArrayList<Integer> abc=new ArrayList<Integer>();
ArrayList<Integer> ab=new ArrayList<Integer>();
Scanner a=new Scanner(System.in);
int b;
for(int i=0;i<=10;i++)
{
b=a.nextInt();
if(!abc.contains(b))
{
abc.add(b);
}
else
{
System.out.println("duplicate elements"+b);
}
}
}
}
What about using mysql -v
to put mysql client in verbose mode ?
Your array has default keys(0,1) which store object {'com':'some thing'}
use:
var obj = jQuery.parseJSON(response);
$.each(obj, function(key,value) {
alert(value.com);
});
This is a Server-Side issue.
Server side have .crt file for HTTPS, here we have to do combine
cat your_domain.**crt** your_domain.**ca-bundle** >> ssl_your_domain_.crt
then restart.
sudo service nginx restart
For me working fine.
Update : In angular 7, they are the same as 6
In angular 6
the complete answer found in live example
/** POST: add a new hero to the database */
addHero (hero: Hero): Observable<Hero> {
return this.http.post<Hero>(this.heroesUrl, hero, httpOptions)
.pipe(
catchError(this.handleError('addHero', hero))
);
}
/** GET heroes from the server */
getHeroes (): Observable<Hero[]> {
return this.http.get<Hero[]>(this.heroesUrl)
.pipe(
catchError(this.handleError('getHeroes', []))
);
}
it's because of pipeable/lettable operators
which now angular is able to use tree-shakable
and remove unused imports and optimize the app
some rxjs functions are changed
do -> tap
catch -> catchError
switch -> switchAll
finally -> finalize
more in MIGRATION
and Import paths
For JavaScript developers, the general rule is as follows:
rxjs: Creation methods, types, schedulers and utilities
import { Observable, Subject, asapScheduler, pipe, of, from, interval, merge, fromEvent } from 'rxjs';
rxjs/operators: All pipeable operators:
import { map, filter, scan } from 'rxjs/operators';
rxjs/webSocket: The web socket subject implementation
import { webSocket } from 'rxjs/webSocket';
rxjs/ajax: The Rx ajax implementation
import { ajax } from 'rxjs/ajax';
rxjs/testing: The testing utilities
import { TestScheduler } from 'rxjs/testing';
and for backward compatability you can use rxjs-compat
You can use boost::optional
(or std::optional
for newer versions), which was developed in particular for decision of your problem:
boost::optional<int> y[50];
....
geoGraph.y[x] = nums[x];
....
const size_t size_y = sizeof(y)/sizeof(y[0]); //!!!! correct size of y!!!!
for(int i=0; i<size_y;i++){
if(y[i]) { //check for null
p[i].SetPoint(Recto.Height()-x,*y[i]);
....
}
}
P.S. Do not use C-type array -> use std::array or std::vector:
std::array<int, 50> y; //not int y[50] !!!
If you're using .NET, use the DirectorySearcher class. You can pass in your domain as a string into the constructor.
// if you domain is domain.com...
string username = "user"
string domain = "LDAP://DC=domain,DC=com";
DirectorySearcher search = new DirectorySearcher(domain);
search.Filter = "(SAMAccountName=" + username + ")";
I needed to snapshot a div on the page (for a webapp I wrote) that is protected by JWT's and makes very heavy use of Angular.
I had no luck with any of the above methods.
I ended up taking the outerHTML of the div I needed, cleaning it up a little (*) and then sending it to the server where I run wkhtmltopdf against it.
This is working very well for me.
(*) various input devices in my pages didn't render as checked or have their text values when viewed in the pdf... So I run a little bit of jQuery on the html before I send it up for rendering. ex: for text input items -- I copy their .val()'s into 'value' attributes, which then can be seen by wkhtmlpdf
jQuery(window).load(function () {
alert('page is loaded');
setTimeout(function () {
alert('page is loaded and 1 minute has passed');
}, 60000);
});
Or http://jsfiddle.net/tangibleJ/fLLrs/1/
See also http://api.jquery.com/load-event/ for an explanation on the jQuery(window).load.
Update
A detailed explanation on how javascript loading works and the two events DOMContentLoaded and OnLoad can be found on this page.
DOMContentLoaded: When the DOM is ready to be manipulated. jQuery's way of capturing this event is with jQuery(document).ready(function () {});
.
OnLoad: When the DOM is ready and all assets - this includes images, iframe, fonts, etc - have been loaded and the spinning wheel / hour class disappear. jQuery's way of capturing this event is the above mentioned jQuery(window).load
.
I try to avoid floating elements unless the design really needs it. Because you have floated the <li>
they are out of normal flow.
If you add .navigation { text-align:center; }
and change .navigation li { float: left; }
to .navigation li { display: inline-block; }
then entire navigation will be centred.
One caveat to this approach is that display: inline-block;
is not supported in IE6 and needs a workaround to make it work in IE7.
I know you are using Datepicker, but for some people who are just using HTML5 input date like me, there is an example how you can do the same: JSFiddle Link
$('#start_date').change(function(){
var start_date = $(this).val();
$('#end_date').prop({
min: start_date
});
});
/* prop() method works since jquery 1.6, if you are using a previus version, you can use attr() method.*/
As long as the server allows the ampresand character to be POSTed (not all do as it can be unsafe), all you should have to do is URL Encode the character. In the case of an ampresand, you should replace the character with %26
.
.NET provides a nice way of encoding the entire string for you though:
string strNew = "&uploadfile=true&file=" + HttpUtility.UrlEncode(iCalStr);
A bit late to the party, but Krux has created a script for this, called Postscribe. We were able to use this to get past this issue.
OpenSSL has a horrible documentation with no code examples, but here you are:
#include <openssl/sha.h>
bool simpleSHA256(void* input, unsigned long length, unsigned char* md)
{
SHA256_CTX context;
if(!SHA256_Init(&context))
return false;
if(!SHA256_Update(&context, (unsigned char*)input, length))
return false;
if(!SHA256_Final(md, &context))
return false;
return true;
}
Usage:
unsigned char md[SHA256_DIGEST_LENGTH]; // 32 bytes
if(!simpleSHA256(<data buffer>, <data length>, md))
{
// handle error
}
Afterwards, md
will contain the binary SHA-256 message digest. Similar code can be used for the other SHA family members, just replace "256" in the code.
If you have larger data, you of course should feed data chunks as they arrive (multiple SHA256_Update
calls).
Date input = new Date(); // Imagine your Date here
LocalDate date = DateTimeUtils.toInstant(input)
.atZone(ZoneId.systemDefault())
.toLocalDate();
If you are using the backport of JSR 310, either you haven’t got a Date.toInstant()
method or it won’t give you the org.threeten.bp.Instant
that you need for you further conversion. Instead you need to use the DateTimeUtils
class that comes as part of the backport. The remainder of the conversion is the same, so so is the explanation.
Just to update, following iOS 13, we now have SceneDelegates. So one might choose to put the desired tab selection in SceneDelegate.swift as follows:
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene,
willConnectTo session: UISceneSession,
options connectionOptions: UIScene.ConnectionOptions) {
guard let _ = (scene as? UIWindowScene) else { return }
if let tabBarController = self.window!.rootViewController as? UITabBarController {
tabBarController.selectedIndex = 1
}
}
contentType
option to false
is used for multipart/form-data
forms that pass files.
When one sets the contentType
option to false
, it forces jQuery not to add a Content-Type header, otherwise, the boundary string will be missing from it. Also, when submitting files via multipart/form-data, one must leave the processData
flag set to false, otherwise, jQuery will try to convert your FormData into a string, which will fail.
Use jQuery's .serialize()
method which creates a text string in standard URL-encoded notation.
You need to pass un-encoded data when using contentType: false
.
Try using new FormData
instead of .serialize():
var formData = new FormData($(this)[0]);
See for yourself the difference of how your formData is passed to your php page by using console.log()
.
var formData = new FormData($(this)[0]);
console.log(formData);
var formDataSerialized = $(this).serialize();
console.log(formDataSerialized);
I've often done:
function doSomething(variable)
{
var undef;
if(variable === undef)
{
alert('Hey moron, define this bad boy.');
}
}
Static libraries are compiled as part of an application, whereas shared libraries are not. When you distribute an application that depends on shared libaries, the libraries, eg. dll's on MS Windows need to be installed.
The advantage of static libraries is that there are no dependencies required for the user running the application - e.g. they don't have to upgrade their DLL of whatever. The disadvantage is that your application is larger in size because you are shipping it with all the libraries it needs.
As well as leading to smaller applications, shared libraries offer the user the ability to use their own, perhaps better version of the libraries rather than relying on one that's part of the application